After upgrading the service manager on development system to 21.0.3 and upgrading the smgr dialog to 21.0.3, the service manager dialog is hanging when attempting to connect to the service manager machine.
As a troubleshooting step, the command line tool, ucybsmcl.exe, was used and the following was the result:
C:\Automic\ServiceManagerDialog\bin>UCYBSMCl.exe -C GET_PROCESS_LIST -h servicemanager.servername.com:8871 -n AUTOMIC
*ERROR 2* Pipe returned error
A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond
telnet also could not connect:
C:\Automic\ServiceManagerDialog\bin>curl -v telnet://servicemanager.servername.com:8871
Trying xxx.xxx.xxx.xxx:8871
C:\Automic\SerivceManagerDialog\bin>
Same telnet worked on older server (production), and smgrdia was able to connect to it
Release : 21.0.3
The firewall was not opened between the server with the service manager dialog and the server with the service manager on port 8871.