SG Broadband Community

No prob. Glad I could help!

Yup, I did the same thing and it fixed it on mine. Just not sure why it's setting it in the first place.

http://support.microsoft.com/kb/328890
Subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\<Interface GUID>
Entry: TcpAckFrequency
Value Type: REG_DWORD, number
Valid Range: 0-255
Default: 2


http://technet.microsoft.com/en-us/library/cc938206.aspx
HKLM ...

That's actually one of the articles I read. And if you look, for XP it says:
TcpAckFrequency = 2 (Default=2, 1=Disables delayed ACK, 2-n = If n outstanding ACKs before timed interval, sent ACK)

Looking at that I would say 1500 is not a valid value for the setting. Even if it is, it's definitely ...

I believe I found a bug that is causing severe speed problems when using the Optimizer. Here are the details...
OS: Windows XP SP3
Broadband Connection: 50Mbps Download x 5Mbps Upload

If I launch TCP Optimizer and slide the bar to 50Mbps, just select my primary network adapter (Broadcom NetXtreme ...