MQ QMGR on Windows does not start after system reboot even if it is configured to automatically start in the MQ explorer?

https://developer.ibm.com/answers/questions/216225/mq-qmgr-on-windows-does-not-start-after-system-reb.html

Q:
A WebSphere MQ queue manager on Windows is configured to automatically start in the MQ explorer, however, after system reboot, the queue manager does not start. No errors can be found in the Windows event log or MQ error log. The queue manager can be manually started successfully using command line or MQ explorer (V7.1 or later version).

Ans:

One possible scenario could be that the Startup value in the qm.ini file has been set to "2". If the Startup value is 2, the MQ queue manager will not start automatically. If this is the case, please follow these steps to solve the problem.

1) Change "Startup" value to "1" in /qmgrs//qm.ini For example, InstanceData:    InstanceID=1381394841    Startup=1 .
2) Stop IBM MQ Service ( endmqsvc)
3) Start IBM MQServices ( strmqsvc)

https://developer.ibm.com/answers/questions/216225/mq-qmgr-on-windows-does-not-start-after-system-reb.html