Error 0x80090303 when enabling replication

Error 0x80090303 when enabling replication

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When trying to enable replication on one of my VMs in my lab setup, I encountered the following error – Hyper-V failed to authenticate the Replica server <server name> using Kerberos authentication. Error: The specified target is unknown or unreachable (0x80090303).

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Needless to say, I was able to reach the replica server (prb2.hvrlab.com in my case), firewall settings in the replica server looked ok and I was able to TS and login to the replica server as well. As the error message indicated that the failure was encountered when authenticating the replica server, I decided to check the event viewer logs on the replica server. A couple of errors caught my eye:

(1) SPN registration failures

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(2) This was followed by an error message which indicated that the authentication had failed

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I was getting somewhere, so I ran the “setspn –l” command to list down the currently registered SPNs for the computer and the Hyper-V Replica entry was conspicuously absent.

I restarted the vmms service and when I re-ran the command, I could see the following (set of correct) entries

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I have seen the SPN registration (b.t.w the following TechNet wiki gives more info on SPN registration http://social.technet.microsoft.com/wiki/contents/articles/1340.hyper-v-troubleshooting-event-id-14050-vmms.aspx) failures due to intermittent network blips. There are retry semantics to ensure that the SPN registration succeeds but there could be corner cases (like my messed up lab setup) where a manual intervention may be required to make quicker progress. I also stumbled upon a SPN wiki article: http://social.technet.microsoft.com/wiki/contents/articles/717.service-principal-names-spns-setspn-syntax-setspn-exe.aspx which gives more info on how to manually register the SPN. I didn’t require the info today, but it’s a good read nevertheless.

After fixing the replica server, the enable replication call went through as expected. Back to work…

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  • Dear Praveen, I'm experiencing the same issue trying to setup a replica to another forest. I enabled delegation on the replica broker computer objects and configured a full forest trust. Despite all that the same event error message keeps showing: "Hyper-V failed to authenticate the primary server using Kerberos authentication. Error: The I/O operation has been aborted because of either a thread exit or an application request. (0x800703E3)" Any idea where to look further?

    Thx

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