SBS2008: Issue with expired security certificate

I have small SBS2008 network I inherited a while back. Two Windows 7 Pro clients. Recently the clients started getting a security certificate error for their local domain (remote.domain.local) when they launch Outlook. See attached graphic. I did find that there were valid certificates on file and that the latest one had just expired. As they do NOT access this server remotely and have no need of the certificate, I would prefer to disable the certificate checking process.

I found this article: http://social.technet.microsoft.com/wiki/contents/articles/3527.how-to-decommission-a-windows-enterprise-certification-authority-and-how-to-remove-all-related-objects.aspx and followed the steps down to step 5.2. The rest of the procedure was over my head so I didn't go beyond that step. Suffice to say, whatever I did up to step 5.2 did not fix the problem. Ideally I would like to disable the clients from attempting to use this certificate so they don't have to renew it. Thanks.
certificate-error.JPG
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tcianfloneAsked:
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David AtkinTechnical DirectorCommented:
Hello,

The answer here is not to uninstall the Certification Authority but to simply renew the certificate.

You may have caused further issues by following that article.  SBS and Exchange rely on the certificates to function correctly.

Start by opening the SBS Console> Go to the networking tab and then connectivity.  Run the fix my network wizard.  Let us know what it finds.
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xaichenSenior AnalystCommented:
Hello. I agree with David Atkin.

You can renew the self signed certificate with just a few clicks from the SBS Console.

Windows SBS Console > Network Tab > Connectivity Tasks > Setup your Internet address

Follow the Wizard through to renew the certificate.

There are options to disable encryption on most email clients and to configure the server to allow unencrypted connection, bu the work involved and the security reduction it would cause would make it inadvisable.

Best regards.
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tcianfloneAuthor Commented:
Thanks for engaging on this topic. I ran the fix network wizard; results in attached graphic. I also ran the Set Up Your Internet Address wizard. Status of the certificate went from unknown to self-signed. I'm not on site, but have sent an email to the users to find out if the error pop-up has gone away. Will update status as soon as I know.
netfixwizard.jpg
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David AtkinTechnical DirectorCommented:
Great let us know the outcome but with any luck that should have sorted you out.

The DHCP warning and the warning about the ports isn't a major concern.
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tcianfloneAuthor Commented:
Thanks for the help! I didn't understand about the self-signed certificate on these SBS machines, so this really helped me out. The wizard seems to get you through it pretty well. Regarding the other network "errors" the wizard found, yes, the server is not doing DHCP here so that was expected. And they are not accessing any of the SBS functionality outside the office so those ports are all closed. Cheers!
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