Having a problem with a Balance 20 (running 8.1.0 Build 4939) setting LAN Port 4 to Port Type = Access and VLAN tagged. When I do the WiFi network goes down. Devices can not receive an IP address from the Peplink Balance Firewall or no routing occurs. When I set the Port Type back to Trunk and VLAN Any the WiFi works.
The weird thing is that it works on another Peplink Balance 20 in another location with no issues.
What can I check for?