The domain manager cannot link to a fault-tolerant agent

The domain manager cannot link to a fault-tolerant agent. The stdlist records the following messages: 
+ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ AWSEDW020E: Error opening IPC
+ AWSEDW001I: Getting a new socket: 9
+ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Cause and solution:

The fault-tolerant agent has two netman processes listening on the same port number. This is the case if you installed more than one IBM Workload Scheduler instance on the same workstation and failed to specify different netman port numbers.

Stop one of the two netman services and specify a unique port number using the nm port local option (localopts file).

Ensure that the workstation definition on the master domain manager is defined with the unique port number or it will not be able to connect.