Troubleshooting

Public URL flipped to 502 today even though the app still opens locally, trying to narrow down the usual culprit before I start changing random things

Works on localhost and LAN IP, but remote users on the LocaltoNet address get refused immediately.

Tunnel connects fine, localhost works, but the public link now serves PHP as a download/raw output and I'm trying to pin down what changed.

Was working earlier through the public URL, localhost still loads fine. Trying to figure out whether to check HTTPS forcing, base URL settings, or forwarded headers first.

Tunnel target is still reachable through the LocaltoNet URL, only the custom hostname began failing today.

Login works and localhost still responds, but existing HTTP tunnels won't start or generate a public URL.

Worked earlier, no server changes today. Same PC and local devices can join fine, only the LocaltoNet TCP address fails immediately.

App is fine on localhost today, but the public tunnel started throwing 502 and I'm trying to narrow down the usual culprit.

Server works on 127.0.0.1, nothing changed on the router, trying to narrow down the LocaltoNet settings that matter first

Tunnel is up and the LocaltoNet URL opens fine, but my own domain suddenly fails in browser. Trying to figure out if this is DNS/proxy/cert side.