We have a 7.6 environment working for our staff with hundreds of T1s. Long as they are on a somewhat newer firmware, like 4.6 or 4.7.1. I think around 4.2 or lower it won't work.
I recently installed a fresh 7.8 environment for our students, but cannot get T1s to work, unless I use the 7.6 agent on the VMs instead of 7.8, then they connect.
Use the settings described in here to get T1s working:
Horizon 7.6 and Teradici Zero Clients - View Connection Server communication error - Teradici
Darin
