Rip's Domain

Syncing mobile devices with Exchange errors with: The certificate chain did not end in a trusted root

Posted in Exchange, TechSupport by rip747 on July 20, 2011

When trying to sync a mobile device or testing your Exchange configuration using testexchangeconnectivity.com you receive the following error:

“The certificate chain did not end in a trusted root. Root = OU=VeriSign Trust Network, OU=”(c) 1998 VeriSign, Inc. – For authorized use only”, OU=Class 3 Public Primary Certification Authority – G2, O=”VeriSign, Inc.”, C=US”

The problem is that a certificate in your certificate chain is untrusted. If you look at the OU it tells you what certificate is untrusted. Go to the certificate authority’s website to download and install the appropriate certificate.

NOTE: for the issue that I had with my Verisign certificate, I ran around in circles looking for the right cert to download. It is quite apparent that Verisign’s knowledge base search sucks. Only after calling their support department was I able to get the right information. That said article SO13347 in Verisign’s knowledgebase had the correct certificate to resolve this problem.

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