I am unable to get Remote Control to work on a Mac client. The action log in DC shows "Remote Control failed to connect with MACOS- TEST.<b>Reason:</ b> Communication failed between Agent and Server".

Windows machines on the same network are able to have Remote Control sessions connect successfully. The mac is fully patched, and has Agent 10.14.16. I also tried it on a second mac on the same subnet and received the same results. 

I'm not seeing anything amiss on the Mac's logs that point to an issue. I can succusfully reboot the machine from DC's web interface. 

Please advise.