I have the free version of the viewer on two different computers. Each viewer connects to a different host with different user accounts on through RDP. However, if one user connects, the other user is disconnected. What is the reason for this?
Viewers cannot communicate directly with each other. If you are connecting from different Viewers to two different Hosts there is nothing common between these two connections and they cannot affect each other.
Are you RDPing to the same Host (I mean the RDP mode) or different Hosts? What happens when you use the Full Control and View mode instead?