2058 error code

[valde...@googlemail.com]

Using MQ 6.0 on Windows XP Pro
I have 2 queue managers on the claster.
I compiled IBM sample for MQGET
and run it.

The error message that I got:

Sample AMQSGET0 start
MQCONN ended with reason code 2058

IBM Documentation says:

RC2058(2058)
Explanation:
On an MQCONN or MQCONNX call, the value specified for the QMNAME
parameter is not valid or not known. This reason also occurs if the
parameter pointer is not valid. (It is not always possible to detect
parameter pointers that are not valid; if not detected, unpredictable
results occur.)

This reason code can also occur if an MQ client application attempts
to connect to a queue manager within an MQ-client queue manager group
(see the QMNAME parameter of MQCONN), and either:

Queue-manager groups are not supported.
There is no queue manager group with the specified name.
Completion Code:
CCFAIL

Programmer Response:
Use an all-blank name if possible, or verify that the name used is
valid.

Does anybody know is this error because there is the default claster
for queue managers on MQ 6.0 and how to fix it quickly?