When you use an MQSeries adapter, and you have many MQSeries receive locations, you experience an intermittent delay or stop in polling messages in the Microsoft BizTalk MQSAgent2 COM+ application on the IBM WebSphere MQ server. When this problem occurs, no messages are delivered to the BizTalk server.
Cumulative update information
This problem was fixed in the following cumulative updates for BizTalk Server:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For information about the service packs and cumulative update list for BizTalk Server, see 2555976: Service pack and cumulative update list for BizTalk Server.
For more information about BizTalk Server hotfixes, see 2003907: Information about BizTalk hotfixes and cumulative update support.
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.