I have a Poly X50 and a TC8 which pair fine when connected on an open Internet connection. Once they are on our corporate LAN on the same subnet they will show connected but wont pair. Any help would be appreciated.
as you wrote correctly, your TC8 and your video endpoint (Studio X / G7500) must be on the same network and subnet. Please ensure that communication between the units is possible via the following ports and is not blocked:
Multicast address 18.104.22.168 UDP port 2000 TCP port 18888
Also give us more info about installed software versions on X50 and TC8.