HTTP_500 and Activesync


When synchronizing your mobile device with Exchange 2003 you may see the following error:


Error code: HTTP_500  Synchronization failed due to an error on the server. Try again.

There is a good KB that covers this issue; KB886346 - "You receive an HTTP_500 error message when you synchronize your mobile device with Microsoft Exchange Server 2003".   This article deals primarily with SMTP address mismatch.   But I have noticed especially with SBS there are a couple of other factors that come into play that can trigger this error.



  • URLScan ISAPI filter - if you are using URLScan it places an ISAPI filter in the ISAPI filters tab in the properties of Web folder in IIS. - Remove it.


    • Location: Open IIS - expand the server icon - select properties of the Web Site folder - ISAPI filters tab.

 



  • Permissions are incorrect on the exchange-oma website


    • Location: Open IIS - expand the server icon - Expand the Web Sites folder - select the properties of the exchange-oma website - Select the Directory Security tab - select the edit button under Authentication and access control 

  • The correct permissions should be:


    • Integrated windows authentication - checked.
    • Basic authentication - checked.
    • All other check boxes should NOT be selected.

 



  • Permissions are incorrect on the microsoft-server-activesync website 


    • Location: Open IIS - expand the server icon - Expand the Web Sites folder - select the properties of the microsoft-server-activesync website - Select the Directory Security tab - select the edit button under Authentication and access control 

  • The correct permissions should be:


    • Basic authentication - checked.
    • All other check boxes should NOT be selected.

>edwalt


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