IDE Port problem Win10 - did work fine till now

Hi,
typical problem: No PORT menu entry in TOOLS any more.
Although Win10 Device Manager shows all connected Arduinos correctly, and they get power (working with preinstalled sketch and green LED on).
It worked fine till recently. So I tried:
-resetting the board
-"double click" resetting the board
-reopening the IDE
-rebooting the computer
-three different Arduinos (two Nano every and one Uno)
-different USB-ports (directly, no hub)
-different USB cables
-reinstalling the IDE
-reinstalling the USB driver
No change, still no PORT entry

So hopefully someone has the ONE idea what to try next which I did not think of myself.
TX in advance!

Oh, just installed and tried IDE 1.8.19 (instead of problematic IDE 2.0.3) and THAT one works fine, wt#. However I'd prefer to be able to use the new version, obviously.

Hi @twosqwares. I'm sorry about the ports problem. I'm going to ask you to post some additional information that might help us to identify the problem.

Please do this:

  1. Start Windows "File Explorer".
  2. Open the Arduino IDE installation folder.
    (usually C:\Program Files\Arduino IDE or C:\Users\<username>\AppData\Local\Programs\Arduino IDE).
  3. In the folder listing of the Arduino IDE installation folder, hold the Shift key while clicking the right hand button on the mouse.
  4. From the context menu, click "Open PowerShell window here".
    Windows PowerShell will now open with the current directory set to the Arduino IDE installation folder.
  5. Type the following command:
    & ".\Arduino IDE"
    
  6. Press the Enter key.
    Debug output should now be printed to the PowerShell window as Arduino IDE starts.
  7. Wait for Arduino IDE to finish starting.
  8. Switch back to the PowerShell window.
  9. Right click on the title bar of the PowerShell window.
    This will open a context menu.
  10. Select Edit > Select All from the context menu.
    This will select all the text in the PowerShell window.
  11. Press Ctrl+C.
    This will copy the contents of the PowerShell window to the clipboard.
  12. Open a forum reply here by clicking the Reply button.
  13. Click the </> icon on the post composer toolbar.
    This will add the forum's code block markup (```) to your reply to make sure the error messages are correctly formatted.
    Code block
  14. Press Ctrl+V.
    This will paste the output into the code block.
  15. Move the cursor outside of the code block markup before you add any additional text to your reply.
  16. Click the Reply button to post the output.

Please let me know if you have any questions or problems while following those instructions.

Hi ptillisch,
Thanks for your reply. I tried, however PowerShell seems to have a problem with the Space ' ' between Arduino and IDE. Anyways: The regular Console with autocomplete by Tab did the trick and I hope the below output helps you identify the problem.
(And OMG, are there a lot of unneccessary language packs...)

C:\Program Files\Arduino IDE2>
Arduino IDE 2.0.3
Starting backend process. PID: 1408
Using browser-only version of superagent in non-browser environment
Configuration directory URI: 'file:///c%3A/Users/User/.theia'
Configuring to accept webviews on '^.+\.webview\..+$' hostname.
2023-02-17T20:12:23.587Z root INFO Backend Object.initialize: 4.1 ms [Finished 1.292 s after backend start]
2023-02-17T20:12:23.587Z root INFO Backend Object.configure: 3.5 ms [Finished 1.292 s after backend start]
2023-02-17T20:12:23.588Z root INFO Backend MessagingContribution.onStart: 1.2 ms [Finished 1.292 s after backend start]
2023-02-17T20:12:23.588Z root INFO Backend OSBackendApplicationContribution.configure: 0.2 ms [Finished 1.327 s after backend start]
2023-02-17T20:12:23.589Z root INFO Backend DefaultWorkspaceServer.onStart: 0.2 ms [Finished 1.327 s after backend start]2023-02-17T20:12:23.589Z root INFO Backend PluginLocalizationBackendContribution.configure: 0.1 ms [Finished 1.327 s after backend start]
2023-02-17T20:12:23.590Z root INFO Backend PluginLocalizationBackendContribution.initialize: 35.3 ms [Finished 1.328 s after backend start]
2023-02-17T20:12:23.590Z root INFO Backend TaskBackendApplicationContribution.onStart: 0.2 ms [Finished 1.328 s after backend start]
2023-02-17T20:12:23.591Z root INFO Backend ElectronTokenBackendContribution.configure: 0.9 ms [Finished 1.328 s after backend start]
2023-02-17T20:12:23.591Z root INFO Backend PluginDeployerContribution.initialize: 0.3 ms [Finished 1.329 s after backend start]
2023-02-17T20:12:23.591Z root INFO Backend ConfigServiceImpl.onStart: 0.5 ms [Finished 1.329 s after backend start]
2023-02-17T20:12:23.592Z root INFO Backend WebviewBackendSecurityWarnings.initialize: 0.3 ms [Finished 1.330 s after backend start]
2023-02-17T20:12:23.592Z root INFO Backend ArduinoDaemonImpl.onStart: 0.8 ms [Finished 1.330 s after backend start]
2023-02-17T20:12:23.592Z root INFO Backend NodeFileUploadService.configure: 1.4 ms [Finished 1.330 s after backend start]
2023-02-17T20:12:23.593Z daemon INFO Starting daemon from C:\Program Files\Arduino IDE2\resources\app\node_modules\arduino-ide-extension\build\arduino-cli.exe...
2023-02-17T20:12:23.593Z discovery-log INFO start
2023-02-17T20:12:23.593Z discovery-log INFO start new deferred
2023-02-17T20:12:23.594Z root INFO Backend HostedPluginLocalizationService.initialize: 0.3 ms [Finished 1.331 s after backend start]
2023-02-17T20:12:23.594Z root INFO Backend BoardDiscovery.onStart: 0.6 ms [Finished 1.331 s after backend start]
2023-02-17T20:12:23.594Z root INFO Backend FileDownloadEndpoint.configure: 0.6 ms [Finished 1.332 s after backend start]2023-02-17T20:12:23.594Z root INFO Backend AuthenticationServiceImpl.onStart: 0.3 ms [Finished 1.333 s after backend start]
2023-02-17T20:12:23.595Z root INFO Backend PluginApiContribution.configure: 0.4 ms [Finished 1.333 s after backend start]
2023-02-17T20:12:23.596Z root INFO Backend HostedPluginReader.configure: 0.8 ms [Finished 1.334 s after backend start]
2023-02-17T20:12:23.596Z root INFO Backend HostedPluginReader.configure: 0.1 ms [Finished 1.335 s after backend start]
2023-02-17T20:12:23.596Z root INFO Backend PlotterBackendContribution.configure: 1.0 ms [Finished 1.336 s after backend start]
2023-02-17T20:12:23.599Z root INFO Theia app listening on http://localhost:51199.
2023-02-17T20:12:23.599Z root INFO Finished starting backend application: 5.6 ms [Finished 1.339 s after backend start]
2023-02-17T20:12:23.600Z root WARN The local plugin referenced by local-dir:/c%3A/Users/User/.arduinoIDE/plugins does not exist.
2023-02-17T20:12:23.600Z root WARN The local plugin referenced by local-dir:/c%3A/Users/User/.arduinoIDE/extensions does not exist.
2023-02-17T20:12:23.601Z root WARN The local plugin referenced by local-dir:C:\Users\User\.arduinoProIDE\plugins does not exist.
2023-02-17T20:12:23.630Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.630Z root INFO Resolved "cortex-debug" to a VS Code extension "cortex-debug@1.5.1" with engines:
2023-02-17T20:12:23.631Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.631Z root INFO Resolved "vscode-arduino-tools" to a VS Code extension "vscode-arduino-tools@0.0.2-beta.5" with engines:
2023-02-17T20:12:23.631Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.631Z root INFO Resolved "vscode-builtin-cpp" to a VS Code extension "cpp@1.52.1" with engines:
2023-02-17T20:12:23.632Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.632Z root INFO Resolved "vscode-builtin-json" to a VS Code extension "json@1.46.1" with engines:
2023-02-17T20:12:23.632Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.633Z root INFO Resolved "vscode-builtin-json-language-features" to a VS Code extension "json-language-features@1.46.1" with engines:
2023-02-17T20:12:23.633Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.633Z root INFO Resolved "vscode-language-pack-bg" to a VS Code extension "vscode-language-pack-bg@1.48.3" with engines:
2023-02-17T20:12:23.633Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.634Z root INFO Resolved "vscode-language-pack-cs" to a VS Code extension "vscode-language-pack-cs@1.53.2" with engines:
2023-02-17T20:12:23.634Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.634Z root INFO Resolved "vscode-language-pack-de" to a VS Code extension "vscode-language-pack-de@1.53.2" with engines:
2023-02-17T20:12:23.635Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.635Z root INFO Resolved "vscode-language-pack-es" to a VS Code extension "vscode-language-pack-es@1.53.2" with engines:
2023-02-17T20:12:23.635Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.635Z root INFO Resolved "vscode-language-pack-fr" to a VS Code extension "vscode-language-pack-fr@1.53.2" with engines:
2023-02-17T20:12:23.636Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.636Z root INFO Resolved "vscode-language-pack-hu" to a VS Code extension "vscode-language-pack-hu@1.48.3" with engines:
2023-02-17T20:12:23.636Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.637Z root INFO Resolved "vscode-language-pack-it" to a VS Code extension "vscode-language-pack-it@1.53.2" with engines:
2023-02-17T20:12:23.637Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.637Z root INFO Resolved "vscode-language-pack-ja" to a VS Code extension "vscode-language-pack-ja@1.53.2" with engines:
2023-02-17T20:12:23.637Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.638Z root INFO Resolved "vscode-language-pack-ko" to a VS Code extension "vscode-language-pack-ko@1.53.2" with engines:
2023-02-17T20:12:23.638Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.638Z root INFO Resolved "vscode-language-pack-nl" to a VS Code extension "vscode-language-pack-nl@1.48.3" with engines:
2023-02-17T20:12:23.639Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.639Z root INFO Resolved "vscode-language-pack-pl" to a VS Code extension "vscode-language-pack-pl@1.53.2" with engines:
2023-02-17T20:12:23.639Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.639Z root INFO Resolved "vscode-language-pack-pt-BR" to a VS Code extension "vscode-language-pack-pt-BR@1.53.2" with engines:
2023-02-17T20:12:23.640Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.640Z root INFO Resolved "vscode-language-pack-ru" to a VS Code extension "vscode-language-pack-ru@1.53.2" with engines:
2023-02-17T20:12:23.640Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.640Z root INFO Resolved "vscode-language-pack-tr" to a VS Code extension "vscode-language-pack-tr@1.53.2" with engines:
2023-02-17T20:12:23.641Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.641Z root INFO Resolved "vscode-language-pack-uk" to a VS Code extension "vscode-language-pack-uk@1.48.3" with engines:
2023-02-17T20:12:23.641Z root INFO PluginTheiaDirectoryHandler: accepting plugin with path
2023-02-17T20:12:23.642Z root INFO Resolved "vscode-language-pack-zh-hans" to a VS Code extension "vscode-language-pack-zh-hans@1.53.2" with engines:
2023-02-17T20:12:23.657Z root INFO Resolve plugins list: 65.1 ms [Finished 1.397 s after backend start]
Restoring workspace roots: c:\Users\User\Documents\Arduino\Duo_N3.34
2023-02-17T20:12:23.660Z root INFO Deployed backend plugin "marus25.cortex-debug@1.5.1" from "C:\Program Files\Arduino IDE2\resources\app\plugins\cortex-debug\extension\dist\extension.js": 3.6 ms [Finished 1.401 s after backend start]
isTempSketch: false. Input was c:\Users\User\Documents\Arduino\Duo_N3.34\Duo_N3.34.ino
2023-02-17T20:12:23.663Z root INFO Deployed backend plugin "arduino.vscode-arduino-tools@0.0.2-beta.5" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-arduino-tools\extension\dist\bundle": 2.5 ms [Finished 1.403 s after backend start]
2023-02-17T20:12:23.675Z root INFO Deployed backend plugin "vscode.cpp@1.52.1" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-builtin-cpp\extension": 11.7 ms [Finished 1.415 s after backend start]
2023-02-17T20:12:23.677Z root INFO Deployed backend plugin "vscode.json@1.46.1" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-builtin-json\extension": 2.1 ms [Finished 1.417 s after backend start]
2023-02-17T20:12:23.677Z root INFO Deployed backend plugin "vscode.json-language-features@1.46.1" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-builtin-json-language-features\extension\client\dist\jsonMain": 0.3 ms [Finished 1.418 s after backend start]
2023-02-17T20:12:23.910Z root INFO Deployed backend plugin "ms-ceintl.vscode-language-pack-bg@1.48.3" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-language-pack-bg\extension": 232.9 ms [Finished 1.650 s after backend start]
2023-02-17T20:12:24.087Z root INFO Deployed backend plugin "ms-ceintl.vscode-language-pack-cs@1.53.2" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-language-pack-cs\extension": 176.5 ms [Finished 1.827 s after backend start]
2023-02-17T20:12:24.100Z daemon INFO INFO[0000] Using config file: c:\Users\User\.arduinoIDE\arduino-cli.yaml
INFO[0000] arduino-cli.exe version 0.29.0
INFO[0000] Executing `arduino-cli daemon`
{"IP":"127.0.0.1","Port":"60223"}

2023-02-17T20:12:24.101Z daemon INFO Daemon is running.
2023-02-17T20:12:24.226Z root INFO Deployed backend plugin "ms-ceintl.vscode-language-pack-de@1.53.2" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-language-pack-de\extension": 138.9 ms [Finished 1.966 s after backend start]
2023-02-17T20:12:24.230Z daemon INFO INFO[0000] Loading hardware from: c:\Users\User\AppData\Local\Arduino15\packages

2023-02-17T20:12:24.327Z root INFO Deployed backend plugin "ms-ceintl.vscode-language-pack-es@1.53.2" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-language-pack-es\extension": 101.1 ms [Finished 2.067 s after backend start]
2023-02-17T20:12:24.327Z daemon INFO INFO[0000] Loading package arduino from: C:\Users\User\AppData\Local\Arduino15\packages\arduino\hardware
INFO[0000] Checking signature                            error="opening signature file: open C:\\Users\\User\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\installed.json.sig: Das System kann die angegebene Datei nicht finden." index="C:\\Users\\User\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\installed.json" signatureFile="C:\\Users\\User\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\installed.json.sig"
INFO[0000] Adding monitor tool                           protocol=serial tool="builtin:serial-monitor"
INFO[0000] Loaded platform                               platform="arduino:avr@1.8.6"
INFO[0000] Checking signature                            error="opening signature file: open C:\\Users\\User\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\megaavr\\1.8.8\\installed.json.sig: Das System kann die angegebene Datei nicht finden." index="C:\\Users\\User\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\megaavr\\1.8.8\\installed.json" signatureFile="C:\\Users\\User\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\megaavr\\1.8.8\\installed.json.sig"
INFO[0000] Adding monitor tool                           protocol=serial tool="builtin:serial-monitor"
INFO[0000] Loaded platform                               platform="arduino:megaavr@1.8.8"
INFO[0000] Checking existence of 'tools' path: C:\Users\User\AppData\Local\Arduino15\packages\arduino\tools
INFO[0000] Loading tools from dir: C:\Users\User\AppData\Local\Arduino15\packages\arduino\tools
INFO[0000] Loaded tool                                   tool="arduino:arduinoOTA@1.3.0"
INFO[0000] Loaded tool                                   tool="arduino:avr-gcc@7.3.0-atmel3.6.1-arduino5"
INFO[0000] Loaded tool                                   tool="arduino:avr-gcc@7.3.0-atmel3.6.1-arduino7"
INFO[0000] Loaded tool                                   tool="arduino:avrdude@6.3.0-arduino17"
INFO[0000] Loading package builtin from: C:\Users\User\AppData\Local\Arduino15\packages\builtin
INFO[0000] Checking existence of 'tools' path: C:\Users\User\AppData\Local\Arduino15\packages\builtin\tools
INFO[0000] Loading tools from dir: C:\Users\User\AppData\Local\Arduino15\packages\builtin\tools
INFO[0000] Loaded tool                                   tool="builtin:ctags@5.8-arduino11"
INFO[0000] Loaded tool                                   tool="builtin:mdns-discovery@1.0.6"
INFO[0000] Loaded tool                                   tool="builtin:mdns-discovery@1.0.8"
INFO[0000] Loaded tool                                   tool="builtin:serial-discovery@1.3.3"
INFO[0000] Loaded tool                                   tool="builtin:serial-discovery@1.3.5"
INFO[0000] Loaded tool                                   tool="builtin:serial-discovery@1.4.0"
INFO[0000] Loaded tool                                   tool="builtin:serial-monitor@0.12.0"
INFO[0000] Loaded tool                                   tool="builtin:serial-monitor@0.13.0"
INFO[0000] Checking signature                            index="c:\\Users\\User\\AppData\\Local\\Arduino15\\package_index.json" signatureFile="c:\\Users\\User\\AppData\\Local\\Arduino15\\package_index.json.sig" trusted=true
INFO[0000] Adding libraries dir                          dir="C:\\Users\\User\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\megaavr\\1.8.8\\libraries" location=platform
INFO[0000] Adding libraries dir                          dir="C:\\Users\\User\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\libraries" location=platform
INFO[0000] Loading libraries index file                  index="c:\\Users\\User\\AppData\\Local\\Arduino15\\library_index.json"

2023-02-17T20:12:24.420Z root INFO Deployed backend plugin "ms-ceintl.vscode-language-pack-fr@1.53.2" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-language-pack-fr\extension": 93.3 ms [Finished 2.161 s after backend start]
2023-02-17T20:12:24.422Z daemon INFO INFO[0000] Adding libraries dir                          dir="C:\\Users\\User\\AppData\\Local\\Arduino15\\libraries" location=ide
INFO[0000] Adding libraries dir                          dir="c:\\Users\\User\\Documents\\Arduino\\libraries" location=user

2023-02-17T20:12:24.473Z root INFO Deployed backend plugin "ms-ceintl.vscode-language-pack-hu@1.48.3" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-language-pack-hu\extension": 53.2 ms [Finished 2.214 s after backend start]
2023-02-17T20:12:24.549Z root INFO Deployed backend plugin "ms-ceintl.vscode-language-pack-it@1.53.2" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-language-pack-it\extension": 75.1 ms [Finished 2.289 s after backend start]
2023-02-17T20:12:24.627Z root INFO Deployed backend plugin "ms-ceintl.vscode-language-pack-ja@1.53.2" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-language-pack-ja\extension": 77.9 ms [Finished 2.367 s after backend start]
2023-02-17T20:12:24.628Z discovery-log INFO start request start watch
2023-02-17T20:12:24.629Z discovery-log INFO start requested start watch
2023-02-17T20:12:24.629Z discovery-log INFO start resolved watching
2023-02-17T20:12:24.631Z daemon INFO INFO[0000] starting discovery builtin:mdns-discovery process
INFO[0000] starting discovery builtin:serial-discovery process

2023-02-17T20:12:24.631Z daemon INFO ERRO[0000] Discovery builtin:serial-discovery failed to run: discovery builtin:serial-discovery process not started: exec: "C:\\Users\\User\\AppData\\Local\\Arduino15\\packages\\builtin\\tools\\serial-discovery\\1.4.0\\serial-discovery": file does not exist

2023-02-17T20:12:24.708Z root INFO Deployed backend plugin "ms-ceintl.vscode-language-pack-ko@1.53.2" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-language-pack-ko\extension": 81.9 ms [Finished 2.449 s after backend start]
2023-02-17T20:12:24.747Z root INFO Deployed backend plugin "ms-ceintl.vscode-language-pack-nl@1.48.3" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-language-pack-nl\extension": 38.3 ms [Finished 2.487 s after backend start]
2023-02-17T20:12:24.829Z root INFO Deployed backend plugin "ms-ceintl.vscode-language-pack-pl@1.53.2" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-language-pack-pl\extension": 81.9 ms [Finished 2.569 s after backend start]
2023-02-17T20:12:24.928Z root INFO Deployed backend plugin "ms-ceintl.vscode-language-pack-pt-br@1.53.2" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-language-pack-pt-BR\extension": 99.0 ms [Finished 2.668 s after backend start]
2023-02-17T20:12:25.030Z root INFO Deployed backend plugin "ms-ceintl.vscode-language-pack-ru@1.53.2" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-language-pack-ru\extension": 101.2 ms [Finished 2.770 s after backend start]
2023-02-17T20:12:25.031Z daemon INFO INFO[0001] started discovery builtin:mdns-discovery process
INFO[0001] sending command HELLO 1 "arduino-cli 0.29.0" to discovery builtin:mdns-discovery
INFO[0001] from discovery builtin:mdns-discovery received message type: hello, message: OK, protocol version: 1
INFO[0001] sending command START_SYNC to discovery builtin:mdns-discovery
INFO[0001] from discovery builtin:mdns-discovery received message type: start_sync, message: OK

2023-02-17T20:12:25.104Z root INFO Deployed backend plugin "ms-ceintl.vscode-language-pack-tr@1.53.2" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-language-pack-tr\extension": 73.2 ms [Finished 2.844 s after backend start]
Opening channel for service path '/services/electron-window-ext'.
Opening channel for service path '/services/electron-window'.
2023-02-17T20:12:25.153Z root INFO Deployed backend plugin "ms-ceintl.vscode-language-pack-uk@1.48.3" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-language-pack-uk\extension": 49.4 ms [Finished 2.893 s after backend start]
Opening channel for service path '/services/ide-updater'.
2023-02-17T20:12:25.241Z root INFO Deployed backend plugin "ms-ceintl.vscode-language-pack-zh-hans@1.53.2" from "C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-language-pack-zh-hans\extension": 88.2 ms [Finished 2.982 s after backend start]
2023-02-17T20:12:25.242Z root INFO Deploy plugins list: 65.1 ms [Finished 2.982 s after backend start]
2023-02-17T20:12:25.439Z root WARN Frontend a.configure took longer than the expected maximum 100 milliseconds: 164.8 ms [Finished 1.523 s after frontend start]
2023-02-17T20:12:25.521Z sketches-service WARN Warning! The request sketch path was different than the response sketch path from the CLI. This could be a potential bug. Request: <c:\Users\User\Documents\Arduino\Duo_N3.34\Duo_N3.34.ino>, response: <c:\Users\User\Documents\Arduino\Duo_N3.34>.
2023-02-17T20:12:25.693Z root INFO Start frontend contributions: 385.8 ms [Finished 1.656 s after frontend start]
2023-02-17T20:12:25.693Z root INFO Changed application state from 'init' to 'started_contributions'.
2023-02-17T20:12:25.694Z root INFO Changed application state from 'started_contributions' to 'attached_shell'.
2023-02-17T20:12:25.694Z root INFO >>> Restoring the layout state...
2023-02-17T20:12:25.695Z root INFO ------- SERIALIZED LAYOUT DATA -------
2023-02-17T20:12:25.695Z root INFO 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2023-02-17T20:12:25.696Z root INFO ------- END SERIALIZED LAYOUT DATA -------
2023-02-17T20:12:25.715Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49] Waiting for backend deployment: 161.1 ms [Finished 1.815 s after frontend start]
2023-02-17T20:12:25.972Z sketches-service WARN Mismatching sketch file <Duo_02.ino> and sketch folder name <Duo_01>. Skipping
2023-02-17T20:12:25.973Z sketches-service WARN Mismatching sketch file <Duo_03.ino> and sketch folder name <Duo_01>. Skipping
2023-02-17T20:12:25.973Z sketches-service WARN Mismatching sketch file <Duo_04.ino> and sketch folder name <Duo_01>. Skipping
2023-02-17T20:12:25.974Z sketches-service WARN Mismatching sketch file <Duo_05.ino> and sketch folder name <Duo_01>. Skipping
2023-02-17T20:12:25.974Z sketches-service WARN Mismatching sketch file <Duo_06.ino> and sketch folder name <Duo_01>. Skipping
2023-02-17T20:12:26.075Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768) starting instance
2023-02-17T20:12:26.226Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49] Sync of 21 plugins: 518.1 ms [Finished 2.333 s after frontend start]
2023-02-17T20:12:26.524Z root INFO <<< The layout has been successfully restored.
2023-02-17T20:12:26.585Z root INFO Initialize the workbench layout: 944.0 ms [Finished 2.631 s after frontend start]
2023-02-17T20:12:26.586Z root INFO Changed application state from 'attached_shell' to 'initialized_layout'.
2023-02-17T20:12:26.587Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][marus25.cortex-debug]: Loaded contributions.
2023-02-17T20:12:26.587Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][arduino.vscode-arduino-tools]: Loaded contributions.
2023-02-17T20:12:26.588Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][vscode.cpp]: Loaded contributions.
2023-02-17T20:12:26.588Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][vscode.json]: Loaded contributions.
2023-02-17T20:12:26.589Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][vscode.json-language-features]: Loaded contributions.
2023-02-17T20:12:26.589Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-bg]: Loaded contributions.
2023-02-17T20:12:26.589Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-cs]: Loaded contributions.
2023-02-17T20:12:26.590Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-de]: Loaded contributions.
2023-02-17T20:12:26.590Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-es]: Loaded contributions.
2023-02-17T20:12:26.590Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-fr]: Loaded contributions.
2023-02-17T20:12:26.591Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-hu]: Loaded contributions.
2023-02-17T20:12:26.591Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-it]: Loaded contributions.
2023-02-17T20:12:26.591Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-ja]: Loaded contributions.
2023-02-17T20:12:26.591Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-ko]: Loaded contributions.
2023-02-17T20:12:26.592Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-nl]: Loaded contributions.
2023-02-17T20:12:26.592Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-pl]: Loaded contributions.
2023-02-17T20:12:26.592Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-pt-br]: Loaded contributions.
2023-02-17T20:12:26.593Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-ru]: Loaded contributions.
2023-02-17T20:12:26.593Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-tr]: Loaded contributions.
2023-02-17T20:12:26.593Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-uk]: Loaded contributions.
2023-02-17T20:12:26.594Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-zh-hans]: Loaded contributions.
2023-02-17T20:12:26.594Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49] Load contributions of 21 plugins: 58.9 ms [Finished 2.691 s after frontend start]
2023-02-17T20:12:26.648Z root WARN 'cpp' language is remapped from 'source.cpp.embedded.macro' to 'source.cpp' scope
2023-02-17T20:12:26.648Z root WARN a registered grammar configuration for 'cpp' language is overridden
2023-02-17T20:12:26.970Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): PluginManagerExtImpl/init()
2023-02-17T20:12:26.972Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(cortex-debug@1.5.1 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:26.976Z root INFO [hosted-plugin: 23768] Debugger contribution has been registered: cortex-debug
2023-02-17T20:12:26.977Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(vscode-arduino-tools@0.0.2-beta.5 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)2023-02-17T20:12:26.977Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(cpp@1.52.1 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:26.978Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(json@1.46.1 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:26.978Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(json-language-features@1.46.1 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:26.978Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(vscode-language-pack-bg@1.48.3 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:26.979Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(vscode-language-pack-cs@1.53.2 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:26.979Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(vscode-language-pack-de@1.53.2 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:26.980Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(vscode-language-pack-es@1.53.2 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:26.980Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(vscode-language-pack-fr@1.53.2 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:26.981Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(vscode-language-pack-hu@1.48.3 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:26.981Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(vscode-language-pack-it@1.53.2 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:26.981Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(vscode-language-pack-ja@1.53.2 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:26.982Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(vscode-language-pack-ko@1.53.2 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:26.982Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(vscode-language-pack-nl@1.48.3 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:26.982Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(vscode-language-pack-pl@1.53.2 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:26.983Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(vscode-language-pack-pt-BR@1.53.2 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)2023-02-17T20:12:26.983Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(vscode-language-pack-ru@1.53.2 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:26.983Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(vscode-language-pack-tr@1.53.2 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:26.984Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(vscode-language-pack-uk@1.48.3 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:26.984Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): initializing(vscode-language-pack-zh-hans@1.53.2 with C:\Program Files\Arduino IDE2\resources\app\node_modules\@theia\plugin-ext-vscode\lib\node\plugin-vscode-init)
2023-02-17T20:12:27.049Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): PluginManagerExtImpl/loadPlugin(C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-builtin-json-language-features\extension\client\dist\jsonMain)
2023-02-17T20:12:27.129Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): PluginManagerExtImpl/loadPlugin(C:\Program Files\Arduino IDE2\resources\app\plugins\vscode-arduino-tools\extension\dist\bundle)
2023-02-17T20:12:27.147Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][marus25.cortex-debug]: Started plugin.
2023-02-17T20:12:27.148Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][arduino.vscode-arduino-tools]: Started plugin.2023-02-17T20:12:27.148Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][vscode.cpp]: Started plugin.
2023-02-17T20:12:27.148Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][vscode.json]: Started plugin.
2023-02-17T20:12:27.149Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][vscode.json-language-features]: Started plugin.
2023-02-17T20:12:27.150Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-bg]: Started plugin.
2023-02-17T20:12:27.150Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-cs]: Started plugin.
2023-02-17T20:12:27.150Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-de]: Started plugin.
2023-02-17T20:12:27.150Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-es]: Started plugin.
2023-02-17T20:12:27.151Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-fr]: Started plugin.
2023-02-17T20:12:27.151Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-hu]: Started plugin.
2023-02-17T20:12:27.151Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-it]: Started plugin.
2023-02-17T20:12:27.152Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-ja]: Started plugin.
2023-02-17T20:12:27.152Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-ko]: Started plugin.
2023-02-17T20:12:27.152Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-nl]: Started plugin.
2023-02-17T20:12:27.153Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-pl]: Started plugin.
2023-02-17T20:12:27.153Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-pt-br]: Started plugin.
2023-02-17T20:12:27.153Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-ru]: Started plugin.
2023-02-17T20:12:27.153Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-tr]: Started plugin.
2023-02-17T20:12:27.155Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-uk]: Started plugin.
2023-02-17T20:12:27.155Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49][ms-ceintl.vscode-language-pack-zh-hans]: Started plugin.
2023-02-17T20:12:27.157Z root INFO [hosted-plugin: 23768] PLUGIN_HOST(23768): PluginManagerExtImpl/loadPlugin(C:\Program Files\Arduino IDE2\resources\app\plugins\cortex-debug\extension\dist\extension.js)
2023-02-17T20:12:27.180Z root INFO [hosted-plugin: 23768] Debug configuration provider has been registered: cortex-debug, trigger: 1
2023-02-17T20:12:27.182Z root INFO [hosted-plugin: 23768] GDB server console created
2023-02-17T20:12:27.191Z root INFO [f21a2ad5-935a-4be1-ba48-e026bcf6dd49] Start of 21 plugins: 601.9 ms [Finished 3.297 s after frontend start]
2023-02-17T20:12:27.669Z root INFO Replace loading indicator with ready workbench UI (animation): 856.6 ms [Finished 3.548 s after frontend start]
2023-02-17T20:12:27.670Z root INFO Changed application state from 'initialized_layout' to 'ready'.
2023-02-17T20:12:27.670Z root WARN Linked preference "workbench.colorCustomizations" not found. Source: "editor.bracketPairColorization.enabled"
2023-02-17T20:12:27.678Z root INFO Frontend application start: 2257.0 ms [Finished 5.408 s after backend start]
2023-02-17T20:12:27.706Z sketches-service WARN Mismatching sketch file <Duo_02.ino> and sketch folder name <Duo_01>. Skipping
2023-02-17T20:12:27.706Z sketches-service WARN Mismatching sketch file <Duo_03.ino> and sketch folder name <Duo_01>. Skipping
2023-02-17T20:12:27.707Z sketches-service WARN Mismatching sketch file <Duo_04.ino> and sketch folder name <Duo_01>. Skipping
2023-02-17T20:12:27.707Z sketches-service WARN Mismatching sketch file <Duo_05.ino> and sketch folder name <Duo_01>. Skipping
2023-02-17T20:12:27.707Z sketches-service WARN Mismatching sketch file <Duo_06.ino> and sketch folder name <Duo_01>. Skipping
Checking for update
2023-02-17T20:12:27.908Z root INFO Starting language server: arduino:megaavr:nona4809
Update for version 2.0.3 is not available (latest version: 2.0.3, downgrade is allowed).
2023-02-17T20:12:28.427Z root ERROR ---- !!!SLOW!!! DURATION: search took 540.657 ms. Args: [{"type":"Updatable"}] ----
2023-02-17T20:12:28.457Z daemon INFO INFO[0004] Searching tools required for board arduino:megaavr:nona4809

2023-02-17T20:12:28.457Z daemon INFO INFO[0004] Required tool                                 tool="arduino:arduinoOTA@1.3.0"
INFO[0004] Required tool                                 tool="arduino:avr-gcc@7.3.0-atmel3.6.1-arduino5"
INFO[0004] Required tool                                 tool="arduino:avrdude@6.3.0-arduino17"
INFO[0004] Adding libraries dir                          dir="C:\\Users\\User\\AppData\\Local\\Arduino15\\libraries" location=ide
INFO[0004] Adding libraries dir                          dir="C:\\Users\\User\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\megaavr\\1.8.8\\libraries" location=platform

2023-02-17T20:12:28.458Z daemon INFO INFO[0004] Adding libraries dir                          dir="c:\\Users\\User\\Documents\\Arduino\\libraries" location=user

2023-02-17T20:12:28.646Z root WARN Widget was activated, but did not accept focus after 2000ms: serial-monitor
2023-02-17T20:12:28.699Z daemon INFO INFO[0004] Resolving include AS5600.h for arch megaavr
INFO[0004]   found better lib                            lib=AS5600 prio=643

2023-02-17T20:12:28.760Z daemon INFO INFO[0004] Resolving include Wire.h for arch megaavr
INFO[0004]   found better lib                            lib=Wire prio=64C

2023-02-17T20:12:28.823Z daemon INFO INFO[0004] Resolving include Bounce2.h for arch megaavr
INFO[0004]   found better lib                            lib=Bounce2 prio=643

2023-02-17T20:12:28.885Z daemon INFO INFO[0005] Resolving include EEPROM.h for arch megaavr
INFO[0005]   found better lib                            lib=EEPROM prio=64C

2023-02-17T20:12:29.866Z daemon INFO INFO[0006] Searching tools required for board arduino:megaavr:nona4809
INFO[0006] Required tool                                 tool="arduino:arduinoOTA@1.3.0"

2023-02-17T20:12:29.867Z daemon INFO INFO[0006] Required tool                                 tool="arduino:avr-gcc@7.3.0-atmel3.6.1-arduino5"
INFO[0006] Required tool                                 tool="arduino:avrdude@6.3.0-arduino17"

Arduino IDE.exeArduino IDE.exeArduino IDE.exe

Thanks! I see the problem here:

serial-discovery is the tool used by Arduino IDE to find the serial ports on your computer.

Arduino IDE automatically updates this tool whenever Arduino releases a new version. Version 1.4.0 was released recently and it seems something went wrong during the installation. This is usually found to be caused by interference from the antivirus software.

Please check the quarantine of your antivirus software to see if the file serial-discovery.exe is in there. If you can restore it from the quarantine and then restart Arduino IDE then the IDE will start recognizing your ports again. I also recommend configuring your antivirus so that it won't interfere with future updates of this tool.

If you are not able to restore the file, please let me know and I will help you find another solution.

Hi ptillisch,
thank you very much for your quick and exact help. After removing serial-discovery out of the AV-quarantine, the ports were recognized perfectly again.
Now I have to find out how to teach my AV-software to leave this tool alone - but I'm sure I can figure that one out myself.

You are welcome. I'm glad it is working now.

Regards,
Per