Hello,
I recently am having an issue with my VBAN setup and I haven't been able to fix it and I haven't found a solution.  I apologize if I provide the incorrect wording or term as I am not an audio expert.  I got a new monitor on PC 2 that has speakers on it and when I setup the new monitor it messed up my VBAN settings as PC 2 used the speakers in the sound settings instead of my VBAN setup.  After setting it back up to what I had I am having an issue with my microphone.  The quality of my microphone being sent to PC 2 becomes distorted or robot-y but on PC 1 everything is okay.  Which makes me think it is something within VBAN, and this issue never occurred before the new monitor.  I've been using VBAN without issues for 4 months.
Rough setup: 
PC 1 has my microphone and sends to PC 2 via VBAN.  
PC 1 has mic set on BUS B2 send and I've changed the net quality speed multiple times.
PC 2 receives the microphone on different net quality speeds but it goes to Virtual in #2.  
After a random set of time, it can be anywhere from 5 - 30 minutes, the distortion/robot voice occurs on PC 2.  It shows up with a red error on PC 2, but PC 1 shows no errors.  If I change the net quality after the distortion starts, it is fixed for another 5 - 30 minutes until it happens again.  This only started occurring when I setup the new monitor about two weeks ago and the sound settings on PC 2 were changed.  Any thoughts?  I can post screenshots of the settings if that will help.
Thanks