After installing a GW or Agent using a certificate you keep getting the 20071 event. Saying “The OpsMgr Connector connected to opstapms01, but the connection was closed immediately without authentication taking place. The most likely cause of this error is a failure to authenticate either this agent or the server . Check the event log on the server and on the agent for events which indicate a failure to authenticate.”

You have double checked every normal solution as the certificate chain, network connection, ports , setup ect.. . But what’s causing this and how to solve it.

A very important step is to check the registry. Go to the OPS reg hive and check if the FQDN name is supplied for the Networkname and AuthenticationName. If this doesn’t match your certificate common name you will get the 20071 event.

Just change it and restart the OpsMgr service.

Happy SCOM’ing

Michel Kamp