Entries in the Discovery log will be similar to:
16/11/2011 10:26:36 4452 Initializing connection to agent: \\workstation.domain.local.
16/11/2011 10:26:36 4452 Requesting remote agent version.
16/11/2011 10:26:36 4452 Error 0x6d3. The authentication service is unknown.
The agent installed on the workstation being discovered has not been upgraded and it running an older version than the RUM controller service.
Environmental variables, such as name resolution, can also cause this error when the RUM controller service communicates attempts to communicate with the RUM agent.
Run Cleanup on the workstation to remove the old agent. When completed, run Discovery to install the updated agent.
Verify NetBIOS name resolution between the workstation and the RUM controller and/or add workstations to the collection using FQDN.
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