Hello Peter,
This is the 6th day that the new SCCM environment is online and everything (so far) seems to be working fine. I have checked the log files (like distmgr.log etc ) and also the DP component log file as well. No where I see any RED lines or anything that raises flag. All log files are showing as "Success" written between the lines. Still the "Site Status Availability" for the DP, the Site Server and the Component Server are showing as UNKNOWN (pls refer to my last screenshot as above).
I heard from someone that this problem might be related to IIS security related issue. But I am not sure. Once again, I am running SCCM 2012 R2 on Windows Server 2012 R2.
Thanks very much.