Azure Monitor is a service that provides real-time monitoring data for Azure resources and on-premises servers. The Azure Monitor agent is a component that can be installed on Windows client devices to collect performance and event data for those devices and send it to an Azure Monitor workspace for analysis.
If you are no longer seeing events in your Azure Monitor workspace for a Windows client device that has the Azure Monitor agent installed, there are a few things you can check:
- Verify that the agent is still running on the client device. You can check the Windows Task Manager to see if the "Microsoft Monitoring Agent" process is running.
- Check the agent's configuration to ensure that it is correctly configured to send data to the correct Azure Monitor workspace.
- Check the Azure Monitor workspace to ensure that data collection is enabled for the client device. You can also check if there's any issue with the workspace or the Log Analytics.
- Check the network connectivity between the client device and Azure. The agent needs to be able to connect to Azure to send data, so a network issue could be preventing data from being sent.
- Check the security of the client device. Ensure that there's no firewalls or security software blocking the communication between the agent and Azure.
- Check for any recent updates of the agent, it could be that the agent was updated and it's not longer compatible with the version of the agent running on the client device.