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Symptoms

Assume that you install Update Rollup 1 for Microsoft Exchange Server 2010 Service Pack 2 (SP2) or a later update rollup that was released before Update Rollup 6 in an organization. Additionally, the organization is monitored by a Microsoft System Center Operations Manager (SCOM) server. In this situation, you receive the following SCOM alerts:

Alert: Exchange Control Panel connectivity (Internal) transaction failures.
Source: ECP - ServerName 
Path: ServerName - Site
Alert description: One or more of the ECP connectivity tests failed.
Detailed information:
Target: ServerName
Error: An exception was thrown by the Web service: The remote server returned an error: (500) Internal Server Error.


Alert: Exchange Control Panel connectivity (Internal) transaction failures.
Source: ECP - ServerName
Path: ServerName - Site
Alert description: One or more of the ECP connectivity tests failed.
Detailed information:
Target: ServerName
Error: The test failed to establish a session with server ServerName. The remote server returned an error: (500) Internal Server Error.


Additionally, the following event is logged in the Application log on the Exchange Server 2010 Client Access server:

Cause

This issue occurs because of a race condition that occurs when multiple threads try to set a certain property at a same time.

Resolution

To resolve this issue, install the following update rollup:

2746164 Description of Update Rollup 6 for Exchange Server 2010 Service Pack 2

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about Exchange Control Panel connectivity transaction failures, go to the following Microsoft website:

Exchange Control Panel connectivity (Internal) transaction failures

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