Any other router I have sold, I plug the WAN port into my network. Sure it grabs a local IP from my network but don’t care. I plug a laptop into the LAN port and config away. I tried that with a Unifi Express and even tho I see blinking lights and traffic it just stalls and says no internet. I presume it sees an IP that it thinks is internal and will not proceed. Any way around that? I hate having to go onsite and then setup.
Strange. I just did a reset and reset on a Unifi gateway device this week. I plugged the WAN port into the local network and a laptop into the gateway LAN port. It worked fine.
If your local network that you are plugging in your WAN on the UniFi to has the same subnet as the local LAN on the UniFi it’s won’t work because the overlapping routing tables.