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Post-SP2 TCP Offload Fix

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I've mentioned Chimney before. Now, a new Windows Update fix for TCP Offload, which turns it off.

It was on by default in Windows Server 2003 SP2, so if your NIC supported Offload, or RSS, or that other thing I can never remember, it was enabled.

But: we (PSS we) typically turn it off as a first troubleshooting step for any network-related issue -

a) because we know from experience that several drivers seem to do interesting things with it installed (that's a nice way of saying update your drivers),

b) because several of our drivers do interesting things with it (if you're going to choose to use it, check for recent-model tcpip.sys hotfixes), and

c) because we want to be able to see TCP traffic in a network capture for troubleshooting purposes.

 

Off-unless-opted-in brings parity with Windows Server 2008.

Comments

  • Anonymous
    January 01, 2003
    Just following on from some Lifecycle-related musings . 24 months after SP2 was released, Windows 2003

  • Anonymous
    March 17, 2008
    Yeah, I've gotten into trouble with this setting before, too. You'd think dedicated hardware would be faster than software, but it's sort of ironic-- the hardware support tends to be broken and written-in-stone problematic, whereas the software is fluid, malleable, and fixable. Go figure.