Resolution:
Environment:

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Any

Resolution:

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AS400 adapter uses remote command and program call and data queue ports.

The default port for remote command and program call is 8475, and the default port for data queue is 8472. However, it is up to the administrator of the I system whether the default ports are used. Contact your IBM I system administrator to check whether they use the default or not.

Another port is the sign on port:
Sign on port:    default 8476

As for QZRCSRVS, it is the remote command and program call port (default 8475).