Server 2008 r2 Enterprise Only Showing 4GB of usable memory and Remote Desktop Greyed Out

We just rebooted a 2008r2 server with 192GB of RAM in it.  Once the system rebooted system properties shows the system has 192GB of RAM but that only 4GB are usable.  We are unable to RDP into the system.  On the Remote tab of the server all options are greyed out.  No errors in event log.
PDISAsked:
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tjc123Connect With a Mentor IT DirectorCommented:
Was Windows properly activated on this server for 2008 R2 Enterprise?
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PDISAuthor Commented:
We had about a month upgraded from Standard to Enterprise using DISM.  It showed that it was activated but I had to re-run activation from the command line.  After doing that everything appears to be correct.  The commands I had to run were

cscript c:\windows\system32\slmgr.vbs -ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx
 cscript C:\windows\system32\slmgr.vbs /ato
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