Have you applied any service updates?
If you have applied a service update to WebSphere MQ, check that the update action
completed successfully and that no error message was produced.
- Did the update have any special instructions?
- Was any test run to verify that the update was applied correctly and completely?
- Does the problem still exist if WebSphere MQ is restored to the previous service
level?
- If the installation was successful, check with the IBM(R) Support Center
for any maintenance package errors.
- If a maintenance package has been applied to any other program,
consider the effect it might have on the way WebSphere MQ interfaces with it.