Because I did not want to run an ethernet cable to the room I have my MC set up I purchased a USB wifi card for my desktop.  I installed the USB wifi card after installing Avid MC.

Turns out by doing this it deactivated my MC and I had to call Avid to get a new Activation Key.  After many attempts it turned out I had to unplug the USB wifi card while I had MC launched.  This allowed MC to once again work.  The AVID tech then told me to de-activate MC, close it and then plug in the USB wi-fi card.  Then re-launched MC and AVID tech gave me a new activation code.  This time it worked.

So if anyone is thinking about a USB wi-fi be advised!  At the time I thought it was a good idea.  But if for any reason I unplug the USB wifi it will deactivate my MC prompting a call to tech support.

Hope this helps.

I am using academic with no dongle by the way.