[SOLVED] USB NIC not seen in a specific USB port after PVE upgrade from 6.4 to 7


Jun 20, 2021
I just upgraded my PVE from 6.4 to 7 and now the USB NIC I had connected in a specific USB port is not seen anymore (lsusb doesn't show anything).

If I change the USB port all starts to work again.

When the NIC is inserted in the original USB port the LED starts blinking, but the OS doesn't see anything.

Any idea on what could have been happened?

All was working perfectly before the upgrade...

Never mind. It was an hardware problem. Power cycling the server was enough to restore the USB port functionality.
Reboots clearly weren't enough.


The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!