agent communication log

I have several servers that have stopped reporting into the Orion server, resulting in 'Node Down' alerts. The servers are up, and I've uninstalled/reinstalled the agent with no change. I've looked at the various agent logs but don't see anything that tells me what's preventing it from checking in. Can someone point me in the right direction?

Thanks,
Joe

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maciej.sandecki

Depending on how the agents are installed (agent initiated or server initiated polling), you may need to check on the server logs or the agent logs. You may try increasing the logging level on server and agent to see if you get additional clues from the logs. Also, were there no changes in any firewalls between the server and the agents that could block the ports used by the agents?

jduehmig

Since it is not checking in with the server, the server logs won't help. I can't find anything in the agent logs that help me. I don't know how to increase the agent logging level. No changes to the firewall that I'm aware of.

maciej.sandecki

Could you provide more information on way agents are installed? Agent or server initiated mode? Could you send a screenshot from Settings -> Manage Agents?

By 'not checking in with the server' do you mean the agents are not registering with the server or that they appear Down after registration?

Are you able to edit agent's settings and change Log Level in the Troubleshooting section (at the bottom)? If not, you can try changing the Log Level directly in the agent's configuration file (SolarWinds.Agent.Service.exe.cfg, in Logging section), restarting the agent's services then checking if you have more information in the log files.

Also, check in Windows logs if the services are not dying. Maybe some change in the dependencies required by the agents (some Windows update, removal of .NET...).