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The port on the server hosting the BlackBerry Admnistration Service has not been opened correctly and the BlackBerry Administration Service - Administration Service is not able to connect to the port.

Please check this resolution:

Login to the BlackBerry Enterprise Server as the BlackBerry Enterprise Server Service Account, usually BESAdmin.

On the BlackBerry Enterprise Server open the BlackBerry Server Configuration Utility.

On the BlackBerry Administration Service - High Availability tab review the ports listed for each BlackBerry Administration Service component and identify the port listed within the log line.

When the affected component has been found check the Windows Task Manager to view memory usage of the relevant BlackBerry Administration Service process, either BAS-AS.exe or BAS-NCC.exe

If one of the processes, usually BAS-NCC, is below the required memory usage open the Windows Services console and restart the BlackBerry Administration Service - Application Server and BlackBerry Administration Service - Native Code Container services.

Monitor the Windows Task Manager to verify the two processes reach their required memory usage levels.