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WCF wildcard certificate issue RRS feed

  • Question

  • I had a WCF service working with a certificate bound to the name system.domain.com. The client configuration was:

            <identity>
              <dns value="system.domain.com"/>
            </identity>

    I renewed it with a wildcard certificate from a 3rd party trusted CA with the following SANs:

    DNS Name=*.domain.com
    DNS Name=domain.com

    The following now represents the config file.

            <identity>
              <dns value="domain.com"/>
            </identity>

    After this certificate change, the clients can no longer connect to the WCF service.  I have seen articles indicating that the only the last item in the list is used but that was with before version 4.6.1.  I am using version 4.7.  Further, it seems like the last SAN should still match.  Any ideas to why this is failing is appreciated.



    • Edited by simdoc Monday, March 2, 2020 9:01 PM
    Monday, March 2, 2020 8:57 PM