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ITsVISTA KB-Link: KB2579921

BITS peer caching does not work in a domain that has a disjoint namespace on a Windows Vista-based or Windows Server 2008-based computer

Consider the following scenario:

  • You use a Windows Server Update Services (WSUS) server to deploy updates to Windows Vista-based or Windows Server 2008-based client computers.
  • The client computers are in a domain environment that has a disjoint namespace.
  • You enable Background Intelligent Transfer Service (BITS) peer caching on the client computers.
  • You install updates on one client computer (client A).

In this scenario, the other client computers cannot install updates from client A.

Note: When this issue occurs, the other client computers install updates from the WSUS server.

There is a download that resolves this issue. See Hotfixes for details.
32-bit Download: Contact Microsoft
64-Bit Download: Contact Microsoft

For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB2579921.

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