Duplicate wifi connection but with different gateway

Have you considered IP Switching software like this? Free IP Switcher - Free software downloads and software reviews - CNET Download.com

It's similar to the Toshiba "ConfigFree" application. I use it on a work laptop that must be connected to various networks and stand alone machines. It's a bit slow but much easier than manually editing the various parameters.

Why you want to do it, I don't care but hopefully this batch file will help. Just copy to notepad save as anything you like with the extension .bat.

Make sure the Interface, IP, subnet and gateways match what you need. The interface name should be whats displayed in "Network Connections - Change adaptor settings" or you could run "netsh interface show interface" from a cmd prompt.

Remove pause from the end once it's working, pause is just there so you can read any errors given.

---- Start batch ----

@echo off
set INTERFACE="Wireless Network Connection"
set IP=192.168.0.2
set SUBNET=255.255.255.0

:START
echo Choose Gateway
echo.
echo 1. 192.168.0.1
echo 2. 192.168.0.10
echo.

set /p GW=Choice?

if %GW%==1 goto GW1
if %GW%==2 goto GW2

cls
echo Invalid choice '%GW%'. Enter 1 or 2.
echo.
goto START

:GW1
set GW=192.168.0.1
netsh interface ip set address name=%INTERFACE% static %IP% %SUBNET% %GW%
goto END

:GW2
set GW=192.168.0.10
netsh interface ip set address name=%INTERFACE% static %IP% %SUBNET% %GW%

:END
pause
---- End batch ----

If you prefer 2 batch files instead of the choice use the first 4 lines followed by the netsh line with the appropriate gateway.

This presumes your using IPv4 with a static IP, if not let us know and I should be able to modify for IPv6, not sure about DHCP but I could have a look. If your disabled DHCP service you will also need to re-enable it to use this script.