SCOM 2019 - Agent Error ID 20070

Václav Jandek 286 Reputation points


I have an issue with my agent. I installed it through console and first thing which I noticed was that I can't see version of agent.

So I went to Event Viewer on Agent and I found error 20070:
The OpsMgr Connector connected to MS, but the connection was closed immediately after authentication occurred. The most likely cause of this error is that the agent is not authorized to communicate with the server, or the server has not received configuration. Check the event log on the server for the presence of 20000 events, indicating that agents which are not approved are attempting to connect.

First of all, device is on same domain and they are in trusted relationship.

I have tried to manually installed agent but same results.

On MS I found a lot of 20000IDs. It seems that old agents are still trying connect to Mangement Server. I choose to reject new manually installed agents but they keep trying to connect and it's creating lot of warnings and reqeusts.

Thank you for any tip,

Operations Manager
Operations Manager
A family of System Center products that provide infrastructure monitoring, help ensure the predictable performance and availability of vital applications, and offer comprehensive monitoring for datacenters and cloud, both private and public.
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  1. System Center guy 681 Reputation points

    Step 1 try the following
    i) uninstall SCOM agent
    ii) remove all SCOM folder in agent machine
    iii) reinstall SCOM agent again
    If not work
    Step 2)

    i) Make sure you are able to ping the SCOM management server and DNS Resolution also works from the monitored Server.
    ii) Make also sure port 5723 is open from your monitored Server to the SCOM Management Server. You could use the command:
    telnet 5723
    iii) Make sure the SCOM Management Group Name in the Agent control Panel is written exactly as you defined it when you installed the Management Group, this Name IS case sensitive! The MG name you can find on top left of your SCOM console.