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When we deployed Microsoft Office Communicator Mobile 2007 R2 to our Windows Mobile devices, we encountered the following issues and what we did to resolve them.

Issue

Cannot verify the certificate from the server.  Check your clock settings or contact your system administrator.

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Resolution

If you encounter the error above when you launch Microsoft Office Communicator Mobile 2007 R2 from your device, you will need to make sure that you have the external certificate chain installed on your device.  You will need to make sure the external certificate chain matches the certificate you configured on the external interface for your OCS Access Edge Server.  Please note some Windows Mobile devices may already have the external certificate chain installed and you are able to log into Communicator Mobile successfully.  You will see this error if you are using a Windows Mobile device that does not have the external certificate chain installed.


Issue

You must update your version of Communicator before you can sign in.  Contact your system administrator for the correct version.

image 

Resolution

If you encounter the error above when you launch Microsoft Office Communicator Mobile 2007 R2 from your device, you will need to make sure the user has been enabled for remote user access using the OCS 2007 R2 Administration Tool.

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Posted on Thursday, June 18, 2009 5:13 PM | Back to top


Comments on this post: Deploying Microsoft Office Communicator Mobile 2007 R2 Notes

# re: Deploying Microsoft Office Communicator Mobile 2007 R2 Notes
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I have the Certificate/Clock error on my Omnia Pro (B7330) and while "install the external certificate chain" may be common language to you I have to admit I'm strugling a bit.

Please could you guide me in how I may Install this external certificate chain?
Left by Peter on May 21, 2010 5:17 AM

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