dx11 no solution

[P_Wing]

Just want to chime in and say that I've had the same problem as yours, and after trying to fiddle with software to no avail (I've tried everything except reinstall windows 10 itself), I've found out that it's my hardware that's causing the problem.

As a background, I've encountered ffxiv_dx11 error ever since I moved my PC to another room (which is coincidental with 5.0 update and windows 10 May update, which makes it super hard to pinpoint what changes caused this)

It turns out that after I pull out GPU and RAM from their slots, cleaning all fans (Case / CPU / GPU) then put them all back in, dx11 error stop appearing.

So I concluded that FFXIV might be more susceptible to even a flicker in GPU renders (other games might be able to resume its operation but FFXIV does not). So if you have done something like moving your PC or modifying your hardware in some way, it might be worth it to try this. Plus you'll result in cleaner PC anyway

Hope this helps.