Good Morning Callinon, Thank you for posting on the Final Fantasy XIV Technical Support Forums.

Have you tried running the game with no other programs running simultaneously? Try going to the startup tab on the task manager and disabling all of the programs. Then restart your PC. This should start the PC without any background applications. Then run the game without any other programs (Discord, Pingzapper, Geforce Experience, etc.). It's possible that one of these programs may be interfering with the game just enough to disconnect you only some of the time.

Please let us know if this solves your issue so we can better assist other players who may have the same problem.

Thank you for playing Final Fantasy XIV! Hope to see you online.