DirectAccess - More Information on the “No Usable Certificate(s)” 0x103 Error

In the continuing saga of the “No Usable Certificate(s) 0x103” error, which has been discussed in two previous blog posts: http://blogs.technet.com/b/tomshinder/archive/2010/03/30/troubleshooting-the-no-usable-certificate-s-ip-https-client-error.aspx and http://blogs.technet.com/b/tomshinder/archive/2011/02/21/another-cause-of-the-no-usable-certificates-s-0x103-error.aspx#3415408 we’ll expand on the explanation for the reason why the computer certificate isn’t included in the NTAUTH store on the UAG DirectAccess server. In the second link noted above, we discovered that…

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Another Cause of the “No Usable Certificate(s) 0x103 Error

One of the most mysterious errors you’ll see when working with DirectAccess are related to failures in IP-HTTPS connectivity. I did a blog post on this problem last year and you can find it at http://blogs.technet.com/b/tomshinder/archive/2010/03/30/troubleshooting-the-no-usable-certificate-s-ip-https-client-error.aspx Phillip Sand clued me into another possible cause of IP-HTTPS connectivity problems. First, whenever you suspect a problem with…

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