[Fat and Slow]

Whats happenning with mine (and others as I see) is something is telling the Windows Audio services to stop. Restarting the service works for a minute or two but then it stops again. What I did to correct the issue is go to the services list, right click on the Windows Audio Service, Properties, Recovery, then change the setting to "restart the service" on First Failure, Second Failure, and subsequent failures.

Hope this works for you. I fought with it for a while..