Access point on minipc-firewall with Proxmox and OpenMptcprouter

[Melania95]

Hi everyone, I hope you can help me. I have a minipc-firewall with 4 ethernet ports. I installed Proxmox and inside it Openmptcrouter (with ip 192.168.1.1) (on port enp1s0), created a "linux-bridge" on Proxmox (port enp2s0 + enp3s0). Then I set up 2 routers with static IPs 192.168.9.1 and 192.168.10.1 and connected everything works. Now on the fourth enp4s0 port I would like to connect a switch with an access point that extends the wireless signal (lan to lan) with IP 192.168.1.100, I tried but it don't work! What should I set on Proxmox? Another bridge port with enp4s0 or what? And what settings should I make on the Openmptcrouter? I don't know what to do... can you help me? Thank you all. A greeting.

EDIT: I had the same configuration on the Linksys Wrt3200acm and I had connected only the router's Wan cable to the switch with the access point and everything worked....