Arduino IDE 2.0 Not Showing Ports

Hello,
My Arduino IDE can not find my Arduino Nano. The Arduino board is a Chinese board and I set the old bootloader option. my cable is ok because IDE 1.8.13 works just fine. but in IDE 2.0 there is no board connected in the board manager window.

@Setrik_aZ, your topic was moved to a more suitable section of the forum.

Thanks, didn’t know this section exists.

This has happened to me a few times.

At first I thought it was due to having V1.8 open at the same time as V2. Closing V1.8 did “sometimes” resolve this, the other times I had to reboot and then open V2