I'm trying to set up a guest network with VLAN tagging between two R6300v2's with the latest Advanced Tomato. The main router has wireless disabled. I've had it all working for a while not with only 1 VLAN and no tagging, but now I want to properly set up a guest network shared between multiple APs. Main router (AP connected on port 2): br0 (main network) 192.168.0.1, DHCP Enabled, 192.168.0.200-254 (I reserve 2-199 for reserved devices) br1 (guest network) 192.168.1.1, DHCP Enabled, 192.168.1.200-254 VLAN 1: Port 1 no tagging, port 2 with tagging, port 3 no tagging, port 4 no tagging VLAN 2 WAN port no tagging VLAN 3: Port 2 with tagging AP (I tried using WAN, but after a restart the router would reset the VLAN bridging/mapping on the WAN port or override the bridge with tagging somewhere, so I'm using port 1): br0 (main network) 192.168.0.102, DHCP Disabled br1 (guest network) 192.168.1.102, DHCP Disabled VLAN 1: Port 1 with tagging, port 2 no tagging, port 3 no tagging, port 4 no tagging VLAN 2: WAN no tagging (disconnected anyway) VLAN 3: Port 1 with tagging The main WiFi is assigned to br0. I plan to assign the guest virtual WiFi to br1. This setup simply doesn't work, and I don't know why. I've had to reset the AP several times in my attempts to get this to work, as it is usually inaccessible after applying these settings. There is a direct CAT6 line between them (no switches). I think that there is some unconfigurable interference in my configuration. Even with the setting unchecked in the main network config, the WAN would still bridge to br0 without anything checked in VLAN options. If I tried to assign the WAN port to br0 and b1, after a restart it would have reset to only being assigned to VLAN 2 (WAN) with no tagging. However, when I tried to use port 1, the router would restart and become inaccessible both via WiFi (br0) and Ethernet. I'd prefer to use the WAN port, as the AP doubles as a switch. What is going wrong?