Deep Security 12 FR has reached end of support. Use the version selector (above) to see more recent versions of the Help Center.

Error: Unable to resolve instance hostname

The error message "Unable to Resolve Instance Hostname" may occur as a result of activating the Agent from Deep Security Manager when you are not using agent-initiated activation.

We recommend that you always use Agent-Initiated Activation.To learn how to configure policy rules for agent-initiated communication and deploy agents using deployment scripts, see Activate and protect agents using agent-initiated activation and communication.