GL-MT3000 v4.2.2
How do I configure the WireGuard server to listen on port 80?
When I try to configure via the GUI I get an error message “-15,port:80 is in using” I’m not using port 80 for anything.
The Admin UI is using it.
If I remember correctly, someone asked how to change the ports the UI uses, so try searching the forum.
Cheers.
Port 80 is helpful for many purposes. Receiving traffic from the internet is the leading cause. On the GL-MT3000 (v4.2.2), the error “-15, port:80 is in using” means the system thinks port 80 is already occupied, likely by the web admin interface. Even if you're not actively using it, the router's GUI often binds to port 80 by default. To run WireGuard on port 80, you'll need to change or disable the router’s web interface port first under Admin Panel → System Settings → Remote Access. I hope it helps!