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Currently I have a set of Windows Server 2016 AD and ca servers, but there are also many old Windows Server 2008R2 and windwos Server 2016. All intercommunication in the whole environment
But now my windows server 2008 R2 and windows server 2012 cannot renew the certificate to windows server 2016, and the error is reported as RPC service unavailable, but WIndows server 2016 does not have this problem. I tried using Portquery and found that the network communication was all fine, then I tried using get-wmiobject it showed access denied. I followed some links to try to fix DCOM and change some permissions,but it nothing effect。 and I think it's caused by tls1.2, but I tried to change windows server 2008R2 and windows server 2012, but it didn't change
thanks for any help
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I am currently experiencing this issue. Upgraded to a 2025 based CA. It works fine with 2016 and newer servers but I get RPC Service unavailable when trying older servers. Did you ever figure out the issue? Thanks!
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I have two thoughts on this.
Eitherway, we may need more detailed infromation on warnings and errors in the event log during the enrolment attempts. Also details about are these auto enrol/renew or manually triggered. Any changes to templates, etc.