I have a Logitech Brio webcam running on Mac. The webcam supports 4k but Webex only offers 1080p. How can I increase resolution inside Webex?  All software is uptodate. 

All,sorry for this newbie question but i have tried for many hours and cannot get this to work.  I am the proud owner of a cisco SGE2000P.  This switch is connected to a router which in turn is connected to an internet cable modem.  The router acts a...