1900: Unable to connect to the Remote Management Agent. Ensure that the Agent is running on the target machine and is compatible with this Remote Management Console

Source:  ZENworks Desktop Management Remote Management console

Severity:  Informational

Possible Cause:  The Remote Management Console is unable to contact the Remote Management Agent on the managed workstation. If the managed workstation has Windows XP SP2 installed on it, the firewall bundled with Windows XP SP 2 might have blocked access to the Remote Management port, which is 1761 by default.

Action:  Contact your network administrator.

Possible Cause:  The network connection is down.

Action:  Ensure that the network connection is up.