CWA 2007 R2 Signing Error code: 0-0-18401-0-0

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  Hello Friends,

  I am unable to signin to the CWA 2007 R2, it shows Error code: 0-0-18401-0-0.

  My Environment:

  Lync2010 Standard Frontend Server

  Lync2010 Edge Server

  CWA 2007 R2 Preped up in a clean greenfeild Lync2010 Installation.

  My External DNS Certificates for CWA Server:

  ocsweb.xxxxxx.com

  My Internal DNS Certificates:

  lync2010.xxxx.com

  Please help me to troubleshoot this error.

  Saturday, March 31, 2012 5:29 AM