Problem after move plexserver on another linux server

[dbirch]

@pakito69

I can access http://my-public-ip:32400/web from any device

is also at fault in other cases,

@ChuckPa

There are a few restrictions when claiming:

1. You must open the server in your browser by its IP address. Using a FQDN will invoke the security flag and block claiming.
2. You must be on the same RFC-1918 subnet as the server.
3. When all else fails, Stop Plex, make a tar.gz of the “Logs” directory under “Plex Media Server” and attach it here.

See also https://forums.plex.tv/t/not-allowed-to-use-hetzner/853570