I have a few ESP32 and ESP8266 chips running on the network running ArduinoOTA, and have frequently updated their firmware. Recently, no network ports appear in the IDE. They appear on a different PC running Arduino IDE, they appear on this computer in Bonjour Browser. I have tried disabling all …

[image] woodengoat: solve the problem [image] Network ports are gone in ide 2.X IDE 2.x i found the problem: nr1: arduino ide did soms updates. everything was f****d up. i renamed the arduino folder to old, i installed a fresh arduino IDE software. i c…

I am unsure if you solved your problem. If not, the first thing we ask new folks to do is read the pinned post re 'How to get the most from the forum'

No, I did solve the problem, I'll move to PlatformIO.

Great, thanks for pointing me to that thread. Navigating to C:\Users\ \AppData\Local\Arduino15\packages\builtin\tools\mdns-discovery Then copying the contents of "1.0.9" into "1.0.12", replacing them, solved it. I can get my updates through.

I had the same problem and the solution above solved it about two months ago. It has come back and the solution no longer works. Any ideas?

I assume the IDE has updated it (i.e. you have allowed it to update)- my fix is still working (just checked.) Just try the fix again, you might have to find a copy of 1.0.9 mdns-discovery.exe if it's no longer there.

It is true that the workaround provided by @woodengoat will stop working after each new release of the mdns-discovery tool, since Arduino IDE automatically installs the latest available version of tool, and always uses the installation from the folder with the highest version number. So, for example…

Yes, after a glitch that caused a partial reinstall I did find the version with about 5.7 MB again. I replaced it with the 4.8 MB one from the 1.0.9 folder but this time that did not work. As you confirm it should have done, I'll try a full reinstall of the IDE. Maybe something else was broken. Dan…

May I digress? My new problem stems from trying to move the 16 GB of Arduino15 out of the system partition. With every test I could think of mklink /J "c:\Users\Axel Berger\AppData\Local\Arduino15" "d:\rpi\Arduino\Arduino15" has worked perfectly. Only the Arduino IDE didn't see it and I had to re…

Do this: If Arduino IDE is running, select File > Quit from the Arduino IDE menus to close the application. Start any text editor application. Open the file at the following path on your hard drive in the text editor:C:\Users\Axel Berger\.arduinoIDE\arduino-cli.yaml Add the following content to …

Thank you ptillisch for your detailed explanation. Axel, if you can't for whatever reason get it working, the PlatformIO plugin in VSCode is definitely worth researching as it's what people tend to graduate to when they outgrow Arduino IDE. I still haven't made the jump yet I am scared;)

Arduino IDE doesn't list network ports

Development Tools IDE 2.x

xfpd December 21, 2025, 9:17am 4

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Arduino IDE doesn't list network ports

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