Classic nano connects on 1 machine but not on 2 others. Tried official cable and 1 other one. It shows up as Ch340 in device manager for all 3 machines. I think this is a driver issue but I can’t figure out how to install usb drivers manually.
It sounds like window machines. I think you are correct but I have not used one those for at least 20 years. I switched to Linux and never looked back. Post the type of machine and the version of the OS, that will help others help you. Good Luck.
Be sure the CH340 driver is on "two other" PCs. In the IDE, select IDE >> TOOLS >> PROCESSOR >> OLD BOOTLOADER
https://learn.sparkfun.com/tutorials/how-to-install-ch340-drivers
Please explain what "connect" means in this scenario.
Is it the same driver on all three machines? Are you using the same Windows version on all machines?
I installed the Adafruit driver and that work! Thanks for the help👍
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