I’m having this problem also except WoW.exe isn’t even coming up in task manager. I click play and it says “Launching…” for several seconds before reverting back to “Play” over and over again. I’ve checked my drivers, uninstalled/reinstalled battle.net and WoW, scan and repair either doesn’t work at all or only works to launch the game once then I have to do it again when I open it back up. I’ve had this problem a few times now, I don’t have the xpac yet and this happened during DF.