Learn how to solve potential issues on your own.

Check the Status of Scheduled Maintenance

Scheduled maintenances can cause disruptions of service.

You can check the status of scheduled maintenance and subscribe for updates.

Click SUBSCRIBE TO UPDATES to receive automated notifications.

Troubleshoot Common Problems

Some of the common problems you might encounter are:

  • A host is not showing up in the user interface.

  • The agent log file shows “Error, connection_manager: Lost connection” messages.

Possible Causes

Suspect agent connectivity problems and troubleshoot for those. Inspect the agent log file is located at /opt/draios/logs/draios.log.

Perform the following checks and see if it solves your problem:

Check Licenses

Confirm that you have not used all available agent licenses.

The agent license count is available in the Settings > Subscription tab. Administrators can purchase additional agent licenses using the UI if needed.

Check Firewall

Confirm basic connectivity through your firewall:


Check Ports

Confirm the correct port is open through your firewall:

telnet 6443

In earlier versions, the Sysdig Agent connected to port 6666. This behavior has been deprecated, as the Sysdig Agent now connects to port 6443.

Check MAC Addresses

Check for duplicate MAC addresses in your hosts.

When the agent starts, an entry in the /opt/draios/logs/draios.log file reports the host’s MAC:

2016-09-26 10:20:25.982, 2363, Information, machine id: a2:11:0b:84:11:21

Compare the logged MAC address to any existing reporting agents in the Explore tab using the Hosts & Containers hierarchy.

Check Access Key

See Settings > Agent Install for the access key and confirm that it is correct.

The Sysdig Agent key is configured in the agent configuration file, opt/draios/etc/dragent.yaml. See Understanding the Agent Config Files for more information.

Upgrade the Sysdig Agent

The agent is routinely updated to include new features and resolve defects. Many times problems can be resolved by upgrading the agent. If problems persist after troubleshooting, Contact Support.