Can't connect to local device via VPN Client router but I can with the wireguard app

I have a device connected on my VPN server(gli net router running as a VPN Wireguard server) via internet cable.

If I connect to my VPN Wireguard server via a wireguard software app I can connect to it. However, if I am connected to the same wireguard server via another gl.i net router(running as a wireguard client router) I can’t connect to them via the same IP address…

Any suggestions on how to fix?


Here’s a ‘known good’ configuration for a GL device WG Client (Certa) to GL device WG Server (Flint) on the same subnet: