Changed Certificate on SBS 2008, IIS now broken.

petesulli used Ask the Experts™
I have generated a self signed SAN certificate on SBS 2008.

Now I cant access IIS propperly.

This is what I did:-

Now I get 403.4 and site missing completely, and the default web site unable to start.

[PS] C:\Windows\System32>New-ExchangeCertificate -GenerateRequest -SubjectName "
C=GB, o=shortdomain Ltd.," -DomainName,, exchange-svr, exchange-svr
.shortdomain.local, -FriendlyName "Exchange Hosting
 SAN" -KeySize 1024 -Path c:\san201105171150.txt -PrivateKeyExportable:$true

Thumbprint                                Services   Subject
----------                                --------   -------
*************************************A0B  .....      C=GB, O=shortdomain ...

[PS] C:\Windows\System32>certreq -submit -attrib "CertificateTemplate:WebServer"
RequestId: 7
Certificate retrieved(Issued) Issued

[PS] C:\Windows\System32>Import-ExchangeCertificate -Path c:\san201105171150.p7b

Thumbprint                                Services   Subject
----------                                --------   -------
*************************************BFE  .....

[PS] C:\Windows\System32>Enable-ExchangeCertificate -Thumbprint

*************************************BFE -Services IIS, POP, IMAP ,SMTP

Overwrite existing default SMTP certificate,
'*************************************4AD' (expires 5/9/2013 11:30:55 AM), with
 certificate '*************************************BFE' (expires 5/16/2013
10:56:17 AM)?
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help
(default is "Y"):
[PS] C:\Windows\System32>

Any ideas what this may have messed up in IIS?
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Distinguished Expert 2018
Well for starters, you didn't use the wizards. At this point, I'd do the following.

1) delete the new certificate from all stores.
2) run the CTIW, then the IAMW, then the FMNW.
3) download and run the SBS BPA to clean up the leftover issues. That should get you back to a supported and stable state.



I'll give the points, as is the only response.  In the end I sorted it myself.  I am not a fan of SBS.

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