Jetson Nano USB plug freeze

Hi,

I am running a Jetson Nano. I noticed two things:
Each time I plug or unplug a usb device, the nano stops responding. It somehow freezes.
And I cannot access the Nano through ssh.

Sometimes the Nano freezes anyway after a while. Like 8 hours or 10 of not using it.

Is there a log? Or a way to figure out what happens?

For this you would use serial console. Serial console allows you to log from a separate computer, and is so simple that it survives many of the conditions which cause network or GUI or plain text console to fail. See:
https://www.jetsonhacks.com/2019/04/19/jetson-nano-serial-console/