Can't access PVE GUI after adding PCI card

[dust_bro]

As the title says, I'm unable to reach the PVE GUI after I add a PCI card to my system. I believe it has to do with my NIC changing positions but I'm unsure what to do about it.
When I run lspci -v without the PCI card, I get:
03:00.0 Ethernet controller: Intel Corporation Ethernet Controller I225-V (rev 03)

When I run lspci -v WITH the new PCI card installed, I get:
06:00.0 Ethernet controller: Intel Corporation Ethernet Controller I225-V (rev 03)

What would you recommend?

 

[Neobin]

This should help:
https://forum.proxmox.com/threads/removed-nvme-drive-lost-networking.109337/#post-470076

 

[leesteken]

Adding or removing a PCI(e) device can shift the PCI ID-number of other PCI(e) devices. The name of the network device(s) is based on the PCI ID-number of the NIC.
Login to the Proxmox host console (after adding the PCI card) and run ip a to find the new name of the network devices (which will be very similar to the old name). Then edit all occurrences of the old name in /etc/network/interfaces to match the new name and reboot.

As I already wrote this, I'm post this short summary but indeed there are several threads about this on the forum. Thanks to @Neobin for finding one.

 

[Softlution]

Here is the solution https://youtu.be/jxW2it3v8Ps