A connection could not be made to WebSphere MQ for the following reason (reason '2538')

While trying to configure JMS Queue connection factories/Activation specification on Websphere Application Sever 8.5 and RAD 8.5.1 I get following error:

A connection could not be made to WebSphere MQ for the following reason: JMSCMQ0001: WebSphere MQ call failed with compcode '2' ('MQCC_FAILED') reason '2538' ('MQRC_HOST_NOT_AVAILABLE').

Can anybody please suggest this could be because of what reason?

Answers


The host your queue manager is running on is not reachable. In the connection factory have you provided the correct host name, does the queue manager have a running listener for the provided port, is the host and port allowed in the firewall?

You should try the host and port with telnet to check.


  • Make sure the hostname, port name, and queueManager name are correct.
  • Go to -> QueueManager -> Listener.
  • Search for LISTENER.TCP.
  • The status should be in Running state. Otherwise Start it by right-clicking.

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