October 16, 2016 – I have had the same issue, starting 2 weeks ago (I think that was right after an update?) – specifically, after playing GW2 for just a few minutes, my computer shuts off (no BSOD) and restarts, but the monitor does not register any connection. I have had PC repair technicians examine my computer, completely reinstall Windows, update drivers, run stress tests, etc. This is a custom built gaming computer only 5 months old, and everything is working great except this issue with GW2 specifically. I have replaced my monitor – same issue. I have replaced my surge protector (‘dirty power’ was theorized) and swapped outlets, even different rooms. I have swapped out power cords and different monitor cords. Finally I uninstalled every game and reinstalled them – all except GW2. Everything works. I ran SWTOR overnight, and it was still on the next morning. This is an issue with GW2.