This will launch the Run window. Within the text field type “cmd” (tend not to add the "") and click on “OK”. When you finally click “OK”, a fresh window is going to show up. In case this approach isn't working, a different technique is to type "cmd" into the Search bar in the Start menu and after that push the Enter button. Inside the Command prompt type 'ipconfig' and click the Enter key on the keyboard. A bunch of details will show up. Scroll down until you find the Default Gateway. Next to the Default gateway you should observe numerals like 192.168.0.1. It is the default Ip of your wireless router.