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Explanation video
- Link plex to homarr: set unauth ip address in plex as mentioned here
401 is normal, you need to add it in the list in network on the app. The ping function doesn't use credentials and will get that code because of it
Go to the the logs on plex and see what ip address gives unauthorized. Then whitelist that ip with out aut. Confirm the ip is correct by refreshing the homarr page.