We have a CX 3000 that we are trying to setup for our Conference room. When attached to a PC and attempting to sign in, it just sits at Signing in and never gets anywhere. When attempting to use the basic sign in, ext & pin, it'll try for a bit and then complain that it can't connect to the cert server. We have verified the DHCP settings, and have used the DHCPUtil a couple of times to no avail. At this point we aren't sure what the problem is. Any help would be appreciated.
We Have tried to setup on Lync 2010 with UCS 5.4 and S4B2015 with UCS 5.4.4