Disable TCP Timestamps:

Can Improve Network Speed On Some Networks.

Tcp1323Opts is a necessary setting in order to enable Large TCP Window support as described in RFC 1323. Without this parameter, the TCP Window is limited to 64K.


Registry file contain:
Windows Registry Editor Version 5.00

Enable:
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
"Tcp1323Opts"=dword:00000000


Disable:
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
"Tcp1323Opts"=dword:00000003