Transition of Offline Files to Online Only Occurs Over Fast Link (263097)

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256986 Description of the Microsoft Windows Registry

SUMMARY

Offline files can be utilized by mobile users to appear as though a connection to the network is still present. Files are cached on the disconnected remote computer until connectivity to the network is available. If the user loses a connection to the network, or the mobile computer is not connected, the view of shared network items that have been made available offline remains just as if the computer is still connected. Offline files continue to perform as offline even if connected to the network over a slow connection (link).

The offline file share transitions to online under the following conditions:

A file synchronization occurs, either at logon, logoff, or when initiated by the user.
A link that is faster than 64,000 Bits Per Second (bps) is detected, and there are no offline changes to cached files.

MORE INFORMATION

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The Offline Files feature is configured for optimum bandwidth above 64,000 bps. Any network speed that is less than or equal to 64,000 bps is considered a slow connection for offline files. This setting can be overridden through the following registry DWORD value:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\NetCache\SlowLinkSpeed

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\NetCache\SlowLinkSpeed

NOTE: The HKEY_LOCAL_MACHINE value overrides the HKEY_CURRENT_USER value if both are present. The value represents bps divided by 100, so the default value of 64,000 is stored as 640 in the registry.