Portal Web Site Control Manager detected PORTALWEB is not responding to HTTP requests. The http status code and text is 500, Internal Server Error - SCCM 2012

Portal Web Site Control Manager detected PORTALWEB is not responding to HTTP requests. The http status code and text is 500, Internal Server Error - SCCM 2012

 

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  Problem:-
  On 06/24/2013 2:14:42 PM, component SMS_PORTALWEB_CONTROL_MANAGER on computer "" reported: Portal Web Site Control Manager detected PORTALWEB is not responding to HTTP requests. The http status code and text is 500, Internal Server Error.
  Possible cause: Internet Information Services (IIS) isn't configured to listen on the ports over which PORTALWEB is configured to communicate.
  Solution: Verify that the designated Web Site is configured to use the same ports which PORTALWEB is configured to use.
  Possible cause: The designated Web Site is disabled in IIS.
  Solution: Verify that the designated Web Site is enabled, and functioning properly.
  For more information, refer to Microsoft Knowledge Base.
  
  
  Resolution:-
  To resolve this issue, run the following command line:
  

  To resolve this issue, run the following command line:
  

  aspnet_regiis.exe /iru

  The Aspnet_regiis.exe file can be found in one of the following locations:

  %windir%\Microsoft.NET\Framework\v4.0.30319

  %windir%\Microsoft.NET\Framework64\v4.0.30319 (on a 64-bit computer)

  
  For reference go through the following link:-
  http://support.microsoft.com/kb/2015129