TcpAckFrequency changes resulting in BAD_POOL_CALLER

By Poman
Apr 22, 2008
  1. Hey guys, I recently tried to decrease my ping using the following guide

    1) Determine your IP (ipconfig or similar)
    2) Run Regedit
    3) Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces
    4) Determine which interface is for your IP. The correct interface will have a DhcpIPAddress set to your current IP.
    5) Right-click on the interface and select New->DWORD
    6) Set the name to TcpAckFrequency (case sensitive)
    7) Set to a decimal value of "1"
    8) Save
    9) Restart your computer

    Im pretty sure I followed it correctly but when I restarted my computer I got a BSOD saying BAD_POOL_CALLER. After reseting my computer and logging in again I still get the message, as of right now I can only turn on the computer in safe mode for a maximum of 45 seconds before the blue screen comes up again. I have tried system restore but it wont restore because it says that there have not been any changes. So far I have tried using different decimal values, like 2 which I think is default and 0 but I am still getting the error? Any advice would really be appriciated.

    Edit: Using windows xp home edition service pack 2
  2. jobeard

    jobeard TS Ambassador Posts: 11,132   +983

    Try the obvious: disconnect from the LAN and delete the added registry entry :)
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