When I disconnect my laptop (Dell 6430u, Windows 10 64-bit) from the UD-3900 (e.g. to go to a meeting) and later reconnect, my USB headset (Jabra UC Voice 750a MS) will sometimes fail to output audio (about half the time). The headset will show as connected in the Sound dialog, Playback tab, but when I right-click and select Test, an error dialog is posted that says “Failed to play test tone.” I have tried to restore operation by changing the default device, disable/enable of the headset, unlug/plug the dock, unplug/plug the headset, all with no success.
If I plug the headset directly into the computer after it fails to work via the dock, it still fails to work, which tells me the laptop has gotten into a bad state. The only way to get it working again is to reboot.
I can reproduce this by unplugging and plugging the dock, after 1-3 times of doing that, the headset will fail. I tried to reproduce this by unplugging/plugging the headset directly into the laptop and it never fails to work, so whatever problem is happening is a result of using the dock.
I checked for a new driver, but Windows says I have the latest driver installed.
I purchased the UD-3900 to replace the Dell D5000 Wireless dock, which deosn’t work with Windows 10. We have numerous instances of these, so if I can get this working, I will recommend the UD-3900 to other D5000 users.
Addition: I forgot to mention - this problem doesn’t happen when using the headphone and mic jacks; unplug/plug the dock and all works well. This is a possible workaround, but we primarily use USB headsets.