Can't Login Through Browser on Local Server

[TheDreadPirate]

You can re-enable the setup wizard via the system.xml file.

You don't specify the OS, so here is where it should be located in various OSes.

Windows - C:\ProgramData\Jellyfin\Server\config\system.xml
Linux - /etc/jellyfin
Docker - /config/config/system.xml

Near the top of that file is "IsStartupWizardComplete". Change the value from true to false, restart jellyfin, and when you access it in the browser it should walk you through the setup process. Only worry about creating a user. This will overwrite the username and password for the admin, but all watch status info is retained since that data is tied to the ID (which is not changed) and not the user name. Skip everything else.