31 Mar 2015
I encountered this error on a setup that had WebConnect Server 5.8.
A specific client had more than one published application and it used ApplicationZone to access it. When he was trying to access any of the published app he received "Missing Powerterm WebConnect Server address", other clients in the network didn't have this issue and there was no DNS related problem.
To fix this error I had to delete PtAgent.exe from C:\Program Files (x86)\Ericom Software\PowerTerm WebConnect 6.0\192.168.1.120
When accessing https://192.168.1.120/webconnect/ApplicationZone.asp?type=legacy_clients the PtAgent will be downloaded and installed again if you allow it.
27 Jan 2015