Been having this issue for a week now,
will crash randomly, could play all night or could crash multiple times between dungeon pulls.

Up until this point I played just fine, and continue to play other games without so much as an issue.

I have tried multiple different variants of gpu drivers all off clean installations.
Always play off a clean start-up with nothing running in the background.
Have seen no difference at all between discord open and discord never turned on.
Have reseated and thoroughly cleaned my case and gpu.
Have clean installed windows and ff14.
Have tried running on directx 9

Pretty much the only option left at this point is to RMA my graphics card, so I'm pretty sure this is on your end and I'm hoping we can get an actual fix or workaround soon.