No access my libraries ONLY with Plex apps but no via browsers

Server Version#: 1.42.2.10156
Player Version#: 1.110.0.351-4e48eb83

I changed my password and the token because of the Plex hack (thanks by the way! :{) and since then, I cannot access my libraries but only from Plex apps. I can access Plex normally from my browsers, but It’s not optimal because the buffer is too short and too slow to fill so I prefer the Plex apps.

When I inspect logs, I have something like:

Request came in with unrecognized domain / IP 'plex.mydomain.com' in header Host; treating as non-local

Which doesn’t seem abnormal but still worth noting.

[Req#5a78] MyPlex: async reachability check - current mapped state: 'Mapped - Not Published (Not Reachable)'.

And that’s all the things that seems not usual. The thing is, I find it strange that I CAN access from my browsers but not from the Plex app on my Mac (or on iOS by the way). The precise error is “server unavailable”.

I am accessing my server from a VPN. This setup always worked until I changed the password and token. If I can access from my browsers, I don’t understand why not from apps, It’s literally the same, but more optimized. The TLS is handled by Traefik that has valid certificate when I access plex.mydomain.com.

Thank you

Problem solved. I had to write my custom URL in the Network settings of the server.