I just purchased a USB-AUDIO device and a USB3-HUB7C and they do not appear to play well with each other.
I connected my headset’s headphone and microphone connectors to the USB-AUDIO device which I then plugged into my new hub. Windows sound settings show the USB-AUDIO device and I was able to hear stereo sound through my headset. However the microphone did not appear to be picking up any sound.
After troubleshooting, I unplugged the USB-AUDIO from my new hub and plugged it directly into a USB port on my computer. I went back into the sound settings and again was able to hear audio through my headset and found that sound was now being picked up from my headset microphone.
I placed a VOIP call using Google hangouts from my computer to my phone and I could hear audio from my phone and I could hear my voice coming out of my phone when I spoke into the headset microphone.
I moved the USB-AUDIO device back to the hub and again tested using a Google hangouts call. I could hear audio through the headset but my phone was not receiving any audio over Google hangouts from my headset microphone.
I checked and there is no firmware update on your site for the USB3-HUB7C hub.
Do you have other suggestions to resolve this issue?