Also check your audio buffers as they may have been changed.

Another possibility is that you have a bug in your computer, some kind of adware that is trying to communicate with the Internet. If you don't have them already get free versions of Ccleaner, http://www.piriform.com/ccleaner
and anti-malwarebytes http://www.malwarebytes.org/

Run these and your anti-virus in safe mode.

Good luck.

Whenever I get something stuck in the back of my throat, I dislodge it by drinking a beer.
It's called the Heineken Maneuver.

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware