How do i figure someone else network key?

First it is illegal

And when you get caught,, you are dealing with the Federal Communications Commission.

I'll give you the name of the program.

You have to do the research to find it.

If you can't find any more about it then it wouldn't do you any good anyway.

WEPCrack - An 802.11 key breaker

You can just guess.. you will not be able to get the network key just like this because the network key is residing in the router, and router wont let you show any information until you login.

So keep guessing or ask the person.

Keep guessing very hard until you get in that is how you figure someone else's network key. What you are doing is to steal someone else's signal or break into someone's property.

what you do is, go round the back of their house yeah and then you smash the window yeah, climb through, find there wreless router and note the wep key yeah, now the next one is more tricky because you need the password to their computer, so okay, this is what you do hide behind the sofa, and wait for them to use their laptop yeah, using a mirror from up above note the password by observing the mirror yeah ok, now wait untill they fall asleep and exit the house by the front. simple yeah

Well, you mean to say, how do I use some one else's wireless network for free?? Ask them.

You can't do that. So you lose JACK!!