Good morning and thank you for posting on the Final Fantasy XIV Technical Support Forums.

Do you notice any pattern to these crashes (only in instances, when zoning into a new location, etc.)?

It sounds like you are getting a driver crash. The first thing to try is switching Directx 9 mode, click 'Config' on the launcher and turn DX11 mode off.

If this does not work. Make sure your graphics card drivers are up to date and that no other program/overlay is running while playing the game. You can also try performing a clean boot. Simply open the task manager and select the 'Start up' Tab. Disable everything here and restart the PC. This will make sure that no background processes are interfering with the game.

We hope we can be of assistance in helping you enjoy the exciting world of Final Fantasy XIV!