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Authentication Failures when Adding Node

Hello all. I need help troubleshooting why authentication fails when trying to add a Windows server node using WMI and ICMP. The credentials are correct and I've tested WMI connectivity successfully to the remote server. What can I look for to help determine why the authentication test fails and prevents me from adding it?

Thanks

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Accepted answers

mark.gover

I had the same issue recently, what I found was a stale reverse DNS entry in AD which was resolving to the wrong servers hostname. If you do a nslookup from the SW server to the desired server's IP, check if the hostname matches up to the servers hostname you are trying to add, if it doesn't match then there is your issue. Rectify the stale entry in DNS, flush DNS on the SW server and it should then authenticate.

https://support.solarwinds.com/SuccessCenter/s/article/Cannot-add-WMI-node-Test-failed?language=en_US resolution 2

All comments

mark.gover

miarde

Thanks, Mark - that was the problem. An nslookup on the IP returned a decommissioned server name. I really appreciate your help!

mark.gover

You are most welcome!