Unknown user/server on my account

Today I noticed an unknown server, (a server which I did not recognize- it had an obscure numerical name) connected to my account; this server was visible in the Locations section/ the drop down menu where I choose between Plex Player and Plex Cloud. I removed it, but it returned by this evening. I have just removed it again, but cannot figure out how it got there/ is getting there. Any ideas?

someone / something has gained access to your plex account. Perhaps snooping your wifi ?

  1. Delete the device again
  2. Sign the server out of your Plex account (settings - server - general)
  3. Go to plex.tv -> My account
  4. Change your password AND (most important) Disconnect all connected devices
  5. Start PMS
  6. Sign it into your account
  7. Go to Devices and delete everything except your NEW (look at the time last seen) server
  8. Sign all your devices back in using the new password.

what the above did is generate a new X-Plex-Token and disconnected everything, including your stuff