How do I connect my phone to a locked Wi-Fi?

-I'm spending the next couple of days at my Grandparents and am wanting to connect to their Wi-Fi on my phone. However, it's locked... and they're sleeping. I was wondering if anyone knew how to locate the password on their computer?ok, so there's this thing called an "internet router" or just "router" connected to the computer and its this small box that has all these wires connecting to and from the internet and some other wires. anyway, if you lift up the box, theres a long line of numbers and letters, that is the password.



http://networkcable-tester.com/wp-conten鈥?/a>



it might look similar to this, just lift it up and look for the password
if they have a computer laying around thats already hooked up or if your can connect a laptop you have to there router than go to the default router configuration page(for me its 192.168.0.1 but it changes) and look for something allong the lines of you guessed it:"Password:"
Pretty much I think you need the password