Audio Problems Sound and effects!
Wait for ANet to fix it I think.
It happens to me in PvE too. It’s no biggy restarting for me when it happens but I imagine it’s annoying in WvW if you queued up to get in.
There’s a couple of other threads here in the Bugs section and more in Audio so hopefully ANet will read one of them.
I’ve had this since launch really. Zegs in PvE/WvW cause it pretty easily with all the sound effect sounds. At least thats what I always attributed to the loss. Its really hard to tell. Definitely annoying though. :/