[SOLVED] No IP from DHCP server

[r0PVEMox]

Update:
Well, seems like its only the VM that does not get an IP address. Other VMs get an IP address from the second network card.
For the VM, the interface / card was visible, but I had to add a new connection with nmtui. After this, the device was listed in nmtui as beeing activated. Also shows this at nmcli -p dev. Now it has a second IP address.

Hello, I bought a second network card (Intel I350) with a quad port. The first one works great, and I get an IP from my DHCP server. However, for the second card, I do not receive an IP address. This is basically the sane fir every vmbr, except for the port / interface:

auto vmbr1
iface vmbr1 inet manual
bridge-ports enp2s0f0
bridge-stp off
bridge-fd 0

Syslog:
May 04 17:02:13 pve-1 kernel: igb 0000:04:00.3 enp4s0f3: igb: enp4s0f3 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
May 04 17:02:13 pve-1 kernel: vmbr3: port 1(enp4s0f3) entered blocking state
May 04 17:02:13 pve-1 kernel: vmbr3: port 1(enp4s0f3) entered forwarding state

Proxmox:
- Proxmox does see and recognize the second card @ lspci
- Proxmox shows a connection on the card, and says: entered forwarding state
- Using the first network card to the same port as the second network card to the switch, provides me with an IP address.

VM:
- nmcli tells the interface is 'disconnected'
- The other interface (other network cad) for the same VM tells 'connected'

Hardware:
- The switch notice a 1000Mbit connection that port, also at another port.
- The router does not receive a DHCP request

This network card in another system with Windows:
- does get an IP address from the DHCP server on every port

Another PC connecting to the same switch:
- does get an IP address from the DHCP server


To me, everything looks fine, but somehow something doesn't communicate with the second network card.