you need WMI -in TCP port 135 to be opened to allow SCS console to connect - otherwise you will get Timeout error in SCS console.
Make sure that you use right RCS server IP or FQDN.
you need to enable AD user of SCS console in RCS WMI Name Space and DCOM permissions on RCS -otherwise you will get Access Denied error message in SCS Console.
the best way is to use RCSutils.exe tool with /Permissions Add command.
See SCS User Guide section called User Permissions Required to Access the RCS (3.8 for SCS 11.1)
Intel EMEA Biz Client Technical Sales Specialist
Thanks for your reply Dariusz,
I tried this but it doesn't seem to make any difference, I still cannot connect. However, before that I managed to discover, by process of elimination, the correct ports to open on the firewall. If I opened up tcp 135 (not the built-in rule for WMI-In) and also a port range of 50000-55000 I was able to connect from my PC and from the SCCM Add-in wizard. I would still prefer to do it the correct way. Can you advise? Should I open a support ticket?