After upgrading to a new release, an end user is reporting some panels on the MQ dashboard (option 9.5 after setting an MQ region) are valid data and some are showing the following error message -
MQSR002E*QPST MQCONN failed, MQRC_ADAPTER_CONN_LOAD_ERROR (2129,X'851')
Per IBM Messsages:
2129 (0851) (RC2129): MQRC_ADAPTER_CONN_LOAD_ERROR
==================================================
Explanation
On an MQCONN call, the connection handling module could not be loaded, so
the adapter could not link to it. The connection handling module name is:
o CSQBCON for batch applications
o CSQQCONN or CSQQCON2 for IMS applications
This reason code occurs only on z/OS.
Completion Code
MQCC_FAILED
Programmer response
Ensure that the correct library concatenation has been specified in the batch
application program execution JCL, and in the queue-manager startup JCL.
https://www.ibm.com/support/knowledgecenter/en/SSFKSJ_7.5.0/com.ibm.mq.ref.dev.doc/q101770_.htm
Either steplib to the library containing this module, or it has to be linklisted.