Your network is slow in Windows SBS 2011 Standard

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Article ID: 2493361 - View products that this article applies to.
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Symptoms

Your network may be very slow on a computer that is running Windows Small Business Server (Windows SBS) 2011 Standard. Outlook Web Access and Remote Web Access websites load very slowly. If you restart Windows SBS 2011 Standard, the problem may be resolved temporarily, but it comes back later. 

Resolution

To resolve this issue, install Windows Server 2008 R2 Service Pack 1 (SP1). To download Windows Server 2008 R2 SP1, see Windows Server 2008 R2 Service Pack 1.

Advanced information

This issue may occur if you have installed a program that uses a Transport Driver Interface (TDI) driver. Some antivirus programs install and use TDI drivers.

For more information about this issue with TDI drivers, click the following article number to view the article in the Microsoft Knowledge Base:
2028827 The applications that use the TDI driver for network traffic may stop responding in Windows Server 2008 R2 or in Windows 7

Properties

Article ID: 2493361 - Last Review: July 12, 2013 - Revision: 5.1
Applies to
  • Windows Small Business Server 2011 Standard
Keywords: 
kbsmbportal KB2493361

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