Found here:
http://forums.comodo.com/empty-t29523.0.htmlYou have a blocked entry.
Ensure that remote desktop connection has been enabled.
Right click on “My computer”
Select Tab “remote”
Select “remote desktop”
Comodo Firewall on remote computer:
In the firewall section – in the left column, select “advanced” – network security policy – global rules
You have to allow TCP port 3389 IN thru the firewall. The firewall log should show that port as being blocked when you try to remote in.
The rule would look like this:
ALLOW - check the checkbox if you want to log
TCP
IN
Source IP: the IP of the PC you are connecting from
Destination IP: Any (or the IP address of the computer being connected)
to here)
Source port: ANY
Destination port: 3389
Now move this rule to the top, so that this rule is executed first.
In the firewall section– in the left column, select “advanced” - network security policy – application rules
Find the entry for svchost.exe
And change the part:
Block and log IP in …….
Add the exception for the IP address of the source computer
I don't use Remote DeskTop myself but I hope this helps you.