GLiNet Mango Travel Router issue

Cant for the life figure this one out- I installed the mango glinet travel router at a remote location but for some reason I cannot get access to the router’s local IP address- however, I can use the remote network through wireguard normally, even log in to the travel router from the local network. But for some reason just cant get access to the router. I dont know what settings I need to change on the router (port forwarded 51820 to the travel router and static IP)

That internet uses xfinity’s modem/router.

The Mango router is at remote side and has Wireguard on it right?

You want to access Mango router via the Wireguard server?

Pls explain in more details about the following.