Question: USB Speakers stop working after changing between Safari and iTunes
Since an update to iTunes and Safari in Sierra, my Bose USB Companion 5 Speakers stop working if I pause music to listen to something through Safari.
All regained only after a full shut down and boot from cold.
The computer concerned is mid-2010 17" MBP.
I upgraded to High Sierra and the problem still exists but can now be regained by doing just a restart. There are many others reporting the same problems in the Bose community. I have the same problem on two different computers with the second one being a 2013 15" MBP.
The problem only started to manifest itself after a security upgrade to Safari and iTunes late 2017. All worked fine until then.
The problem also exists if the computer goes to sleep. When you reactivate it, there's no sound so you have to restart to get the audio back.
It is frustrating as you have to restart and if you multiple windows open, you have to start all over. It even happens if there is nothing else open except Safari and iTunes. It even kills the internal speakers as well.
MacBook Pro, macOS High Sierra (10.13.3), null