Can you connect to your own router's AP first?
Connect to your AP.
After that, log in to your router to configure everything.
Usually the log in address is
http://192.168.1.1If you can't get in to that address, open Command Prompt (Start > Run and type in cmd, then press Enter)
In Command Prompt, type in
ipconfig /all and press Enter.
You will see a Gateway Address. That's the webbie of your router.
When prompted, enter the username and password to log in.
If you still have no idea, please post the router brand + model number up.