I connected my port replicator to The Plugable USB3-SWITCH2. Everything worked except the Audio and Video. I ensured I had the latest DisplayLink drivers. I plugged and replugged the cables. I restarted the systems. I took the plugable out and replugged the WavLink in to both laptops and they immediately worked. I have 120 watt external speaker system, a Logi HD camera, and two Dell monitors, one on HDMI and one on DVI.
Failure only occurs when the plugable is inline.