Unable to add new Plex Server after deleting old one

Server Version#: v.1.43.1.10611-1e34174b1

I have removed the old server from authorized devices. I have deleted the Plex server app, and manually removed the registry files and the folder in the app data location.

I have even used Revo uninstaller to find and remove anything related to Plex.

When I sign into my account after redownloading and installing the Plex server again, I am never greeted with the setup screen. I am taken directly to the web interface and the server I thought I removed is there but “unreachable.” I have no option to reclaim the server and no option to create a new server.

Any assistance would be appreciated because I am about to abandon Plex and move to a different platform if I cannot get this resolved.

Try Incognito mode on your browser, since might be browser related (Cookies etc)

… also:
Make sure to access the server through the bundled web app (e.g. using http://127.0.0.1:32400/web if you’re on the same machine).

Read this: New Claiming Requirement for Windows