Hello,
- Configuring the WG server and client in GL GUI Admin Panel, leave Luci alone.
- Regarding you mentioned, are the LAN/WAN subnet 10.0.0.0/8? What is the WG subnet?
Please do not set up the same subnet for WG and LAN/WAN.
- Please refer the guides to check:
How to troubleshoot WireGuard
Build your own WireGuard home server - GL.iNet Router Docs 4
If no luck, please draw a network topology, and marked the IP address of all interfaces.
- If you require to access WG client LAN in other WG clients, please add the routes in WG server
VPN Dashboard (Firmware v4.7 and earlier) - GL.iNet Router Docs 4