Which O/S and browser?
We discovered a similar problem using our Dell Windows 10 laptop. The sound comes through the speaker but not the headphones. Even though the the sound volume shows the headphone attached. Other sound sources such as computer sounds and utube work just fine. We went through the Win 10 diagnostics but could not resolve the problem. Any ideas.
note: moved entire thread to the website area of the forum.
I had the same problem and it was driving me crazy! I fixed my issue by going into the sound settings on my Windows 7 PC. I saw two playback devices labeled as speakers. One of the playback devices had a green checkmark which signified it as the default. I started playing a recorded show on my PC and I noticed the visual volume indicator rise and fall on the non-default device. I right clicked the non-default device and deleted it. Once I deleted the non-default device the sound from my recorded show came through my headphones.
Hope this helps!
This is a known issue with the Adobe Flash version 27.0. Comcast contacted Adobe and this will be fixed in Adobe Flash's next release.
Below are some troubleshooting steps to try in the interim before an update is released.
Problem: No Audio when connected to HDMI Cable (Happening with Adobe Flash version 27.0)
Problem: No Audio when connected to Bluetooth Speaker / Headphones
How to clear browser history: