SSL certificate showing differently on digicert [closed]

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I have got two SSL Certificated installed on my server 2003 for differnt domains, for example *.test1.net and *.test2.net.

I assigned *.test1.net certificate to one of my website on IIS 6, www.test1.net, however when I check it on http://www.digicert.com/help/, it shows me that it is *.test2.net certificated used on www.test1.net not the correct one, I have no idea what's going on.

The certificate is definitely correct as it has been used for a month, but it goes wrong since this morning, please advise.

Answer 1

The issue has been resolved by restarting the IIS service.

Answer 2

You can't reliably use two certificates on the same IP and port. It just won't work because it requires SNI to work and there are still too many browsers out there that don't support SNI. The basic problem is that the server has to send the client a certificate before it knows what host name the client is trying to reach, so it has no way to know which certificate to send.