The sound will not play through my headset today. It plays through the laptop speakers even when I have the headphones plugged in. I cleared my cache and rebooted several times. The headphones play normal on You tube.
When I watch anything from Xfinity using Safai it will only play audio from internal speakers but when using Chrome it will play through my external speakers just fine.
I have the exact same problem as in the base note.
I had a large Windows 10 Update and had thought that was the issue - now I'm not sure.
Everything BUT Comcast seems to work just fine. Netflix, YouTube, MP3, etc. all seem to work but when I try to watch Live TV the sound ONLY goes to the speakers, not the USB Headphones.
Tried Chrome and it worked!
I then went back to IE and cleared the history/cache. It didn't work.
I cleared it again and rebooted the laptop and IT WORKS!