I’ve been trying to do the quest A Dark Entity several times now, in which you fight the boss Necroventer. There is no problem, until he does this AoE attack where he slams his hands down to the ground. If I get hit by that, my client freezes and stays that way, forcing me to restart the client. Apart from this quest, the game runs just fine.
Specs:
Intel i7-3770K
Geforce GTX 960
Corsair 2x8GB DDR3