Server stopped working after installing ArcGIS Viewer for Silverlight.

Question

Even though I am new to Server, I have successfully installed ArcGIS for Server 10.1, register folders, and publish a simple service.  Then I installed the ArcGIS Server Silverlight viewer.
Now I can no longer publish services or view services including the default World Cities service.  The computer just hangs when I try to publish.  I cannot get the Silverlight app to create a web map. 
I have restarted the server but this has not helped.  The IS department assures me that we meet the specifications for the software.

Any advice is appreciated.

DerekLaw · Answer

Hi Gerry, Even though I am new to Server, I have successfully installed ArcGIS for Server 10.1, register folders, and publish a simple service. Then I installed the ArcGIS Server Silverlight viewer. Now I can no longer publish services or view services ... The computer just hangs when I try to publish. I cannot get the Silverlight app to create a web map. ...

This is very odd, as the ArcGIS Viewer for Silverlight is a completely separate product and does NOT in any way affect an existing ArcGIS for Server site when installed. I have never heard of this type of behavior before.

If you are still having issues, please contact Esri Technical Support and open a support incident so Esri can investigate.

Thanks,

ThomasMontefusco · Answer

If Configure ArcGIS Server Account does not help, go to Start, Run, type regedit.

Check these keys:

1. HKEY_LOCAL_MACHINE\SOFTWARE\ESRI 
2. HKEY_CURRENT_USER\Software\ESRI 
3. HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\ESRI  
4. HKEY_CLAdSSES_ROOT\CLSID

Right-Click on each of these keys and then go to Permissions. Add your domain username to the list and set permissions to "Full Control"

BubbaHey · Answer

As a quick test, try running Configure ArcGIS Server Account. that is like the old post install and can fix permission issues.