File Copy Speed Fix

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    • #43057

      Hi Folks,
      I thought I’d put this out there since it applies to Vista and 2008 server. The TCP autotuning feature is what causes the delay when copying files etc. This is because most routers/switches don’t work properly with it. You can get close to your old XP file copy speed by turning autotune off using the command line below. I would recommend putting this in the manual.

      C:netsh interface tcp set global autotuninglevel=disabled


    • #46056

      In reference to file copying is this over a network or is it in reference to hard drive file copying? Vista and 2k8 use a completely different system to XP and 2003 for file copying and arrangement on a hard drive

    • #46057

      This command simply turns off the TCP autotuning feature built into Vista and 2008. The TCP autotuning can cause slow file transfer speeds over TCP. As indicated, it’s a TCP feature and therefore relates only to TCP connections. Direct drive to drive transfers over the systems bus isn’t affected by this command.


    • #46058

      Use at your own risk. That command broke iTunes Server using a shared server.

      “The shared library “Itunes Server” is not responding. (-3260)
      Check that any firewall software running on either the shared computer or this computer has been set to allow communication on port 3689.

      Trying to undo it with “normal” or uninstallling/reinstalling did not fix.

    • #46059

      Since SP-1 was released for Vista the file copy problem was fixed. Both internal copying and network.

      I never ran 2k8 without SP-1 so I have no reference to judge.

      I would avoid this advice.

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