SOLVED: uninstall completely jellyfin on windows

[Ruand]

To whoever falls into this post, the solution is:

1 - delete firewall inbound rules of jellyfin.server (these ones are from old networks and old installations)
2 - uninstall jellyfin and delete program files jellyfin folder and appdata local jellyfin folder (if u want to configure it again)
3 - clear the cache from your browser
4 - let the ipv4 unfixed for the first connection
5 - install again 

These steps will probably solve your problem