Ive been having this on going problem with plex on my Xbox One. I used to be able to control my xbox one from my phone, iPad and or mac but now the device is not seen at all (so when i click on cast in the top right my mac, iPad and iPhone are all listed but my xbox one isn't anymore). I can still use plex on my xbox one with the console controller but its very annoying that the remote control feature hasn't worked for about 6 months now.
I have deleted plex from the xbox one then reinstalled - didn't work
Deleted the server from my mac and reinstalled - didn't work
Signed out of all devices and removed them all from devices - didn't work
Can anyone shed some light on this subject for me please as its very odd how the xbox one is no longer seen.