Thank you. Yes, that’s correct: the AXT1800 Slate AX is the wiregaurd server and after upgrade, I cannot connect to it, e.g. using wireguard on your smartphone?
I’m not sure how to tell if the WAN IP changed. The modem that it’s connected to doesn’t have a way to connect to it to see settings.
From the Slate AX, here is the Ethernet info from the Internet tab:
Protocol: DHCP
IP Address: 192.168.0.154
Gateway: 192.168.0.1
DNS Server: 192.168.0.1
From goodcloud you can ssh to the Slate AX, then ssh to your modem. But I understand most modems do not provide ssh config tools.
If you have Astrorelay account, you can install astrorelay client on the router, then relay your wireguard server.
Then you can connect to the wireguard server.
After you connect the wireguard server, you can access your modem UI.