All Virtual Interfaces Disappeared after the Upgrade

alpot

New Member
Oct 7, 2025
5
0
1
After upgrading to the latest version (pve-manager/9.0.11/3bf5476b8a4699e2 (running kernel: 6.14.11-4-pve) and performing a reboot, all my virtual interfaces disappeared. So all my VMs failed to make any connection. I have to recreate the network interface for each one.

Is this expected whenever you perform an upgrade?

Code:
$ brctl show
bridge name     bridge id               STP enabled     interfaces
fwbr100i0               8000.3271d28cb904       no              fwln100i0
                                                        tap100i0
fwbr102i0               8000.0e72522ecd7b       no              fwln102i0
                                                        tap102i0
fwbr200i0               8000.f69130197beb       no              fwln200i0
                                                        tap200i0
fwbr300i0               8000.5a6c261e091d       no              fwln300i0
                                                        tap300i0
fwbr400i0               8000.e279fd0fee62       no              fwln400i0
                                                        tap400i0
vmbr0           8000.345a60c755ed       no              enp10s0
vmbr1           8000.9663ca4f3ed5       no             
vmbr2           8000.000000000000       no
vmbr3           8000.000000000000       no
vmbr4           8000.000000000000       no