What version/sp of LANDesk?
Any Post patches installed/MCPs?
What version/sp OS of server?
Technically there really is no identical servers per se. Even same models may have different revs of hardware etc._____________________________________________________________Please consider voting for these ERs:Provide Better Pre/Post LDMS Patch/Sp/.0 Information To The CommunityCumlative Patch List for LANDesk ProductsQuery Builder ImportProvide bulk client deletions without carpal tunnel syndrome.Core Synchronization Allow Mirror functionality from Master Core
Does it actually make connection? Or is the connection rejected (firewall, rc service not started on agent)?
It makes the connection. It just does not display. Even the chat window shows up, but it just reveals a black space where the window should be.
I've had this problem when I've used the Remote Control on a few desktop machines. I've uninstalled the mirror driver and have found that to work in that scenario. What kind of servers are you trying to connect to?
After the connection is established, and the "black" screen displayed, have you tried clicking on the "magnifying glass" icon in the toolbar? This button "Starts/Stops" remote viewing of the target. Assuming that there are no larger problems lurking behind the scenes (driver/resolution settings), this could be the workaround.
In my enviroment, the desktop of the target of the remote control session is shown by default, but in some instances this is not the case and only the "black screen" is immediately visible. Most of the time, it is due to a breakdown in the default behavior and is remedied by simply clicking the "Start/Stop Viewing" icon.