Can't login to CWA 2007 R2


When you try to login to CWA 2007 R2, you get the following error message:
Cannot sign in because your computer clock is not set correctly or your account is invalid.(Error code: 0-1-492)


1. Open ADSIEDIT and navigate to the OU where your CWA service account is stored.
2. Locate the CWA service account (mine is called "CWAService") and right-click then choose Properties.
3. Turn on the checkbox to "Show only attributes that have values" and scroll down to an entry called "servicePrincipalName".
4. Click the Edit button.
5. Type in the SPN using the following format (http/). For example, if your site is called "" then type in "http/". NOTE: Do NOT type http://.
6. Click OK and you're done!

Affected software:

Office Communications Server (OCS) 2007 R2

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