Information and announcements from Program Managers, Product Managers, Developers and Testers in the Microsoft Virtualization team.
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).
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
(2) This was followed by an error message which indicated that the authentication had failed
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
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…
Superb blog , it’s a really informative blog for all user who can facing windows 7 problem, Our services provide complete solution of your windows 7 realted problem.please go through this link .http://windows7support.blogspot.in/2012/08/fix-windows-7-error-1068.htmlThank youAalia lyon
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
Thanks for such a nice post. It is really very informative for those user who faces such type of error in Windows. This will help lots of user as they can solve their problem which will not take much time. You can go through this link: http://www.reimagerepair.us.com/windows-error.php