Navigate the the location below in your registry and make the corresponding change.

Create or edit the existing DWORD value (string for Windows 98) named "BSDUrgent" and set it to equal "0" to use the RFC 1122 method or "1" to use the default UNIX method. 

Restart Windows.

Key:[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\MSTCP]
Value Name: BSDUrgent
Data Type: REG_DWORD
Data:(0 = use RFC1122 method, 1 = default)