I can't confirm the Calman info, as we have no knowledge how they connect.
But, the error message does mean what it says - ColourSpace can see no connected monitor.
This could be a firewall issue, or some other issue with the display configuration - potentially even firmware?
Unfortunately, without actually being there there is little we can do.
The fact the laptop can see the SD card is not really relevant, as that is separate communication to the display's internal LUTs, etc.
I would check all obvious things, as above.
Let me know any further progress.
Mob Boss at Light Illusion