无法连接到WebSphere MQ 7.1中的队列管理器。

I've installed WebSphere MQ 7.1 on Linux platform, after which I installed WebSphere Message Broker 8.0.0.1. Now when I try to create an execution group, I get an exception: Reason code 2035. This exception states that the user is unauthorised to connect to the queue manager. I have this user added in the I've installed WebSphere MQ 7.1 on Linux platfo