Free Windows Admin Tools - Remote Command Prompt not working

Free Windows Admin Tools - Remote Command Prompt not working

Hi,
just installed the newest version of Free Windows Admin Tools on our "admin server".
Added AD  Domain cred and two Win10 Pro computers.
We get all other information of the remote computer, BUT
trying the "Remote Command Prompt" seems not to work "Please wait while conmecting to the Remote Command Prompt...."

Anything else needed on the target computer?

PSExec doesnot work well because of "Administrator" CMD (which is needed).

Thanks in advance
Raymond