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I have attached the error or alert I receive each time I open the Office 365 portal. How can I renew of fix this issue?
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Vasil Michev (MVP)
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As the alert says, one of the certificates you are using with AD FS will expire soon. This might be either the token signing/decrypting certificates or the communication ones. Review the following article for the procedure of changing them:

http://social.technet.microsoft.com/wiki/contents/articles/2554.ad-fs-2-0-how-to-replace-the-ssl-service-communications-token-signing-and-token-decrypting-certificates.aspx

If you are using self-signed certificates for token signing/decrypting, you might want to enable auto-renewal:

http://social.technet.microsoft.com/wiki/contents/articles/1424.ad-fs-2-0-how-to-enable-and-immediately-use-autocertificaterollover.aspx

Lastly, make sure to update the trust settings once you have replaced the certificates:

http://support.microsoft.com/kb/2647048
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ASKER

It is both the Token Decrypting and the Token Signing. So how do I create new certs? I see how to replace them but I did not build this system so I do not know how to create new ones. Is this performed on a server within my network? They appear to be internal created certs since the Service Communications cert appears to be created by a third party provider.
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Vasil Michev (MVP)
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ASKER

Very well. Thank You. I will proceed with this on Saturday.
Oh, and of course make sure you have installed the WAAD PowerShell Module on the AD FS machine:

http://technet.microsoft.com/en-us/library/jj151815.aspx

Here's also another article that covers all the steps in more detail:

http://www.kraak.com/?p=190
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ASKER

This solved my issue. Only took five minutes. Very much appreciated.