[BigAls87Z28]

Alright, here is something very wierd.
This morning...well, afternoon, my dad tells me that he cannot get on line using the network. He tells me that he has to use his wireless Verizon card that he uses when he is on busines(not connected to the home network). He wants to know why, and that is problem one. but there a bit more to problem one, which causes problem two.

Problem Two.
He then goes on to tell me that he STILL cant get on line even after he unplugged the ethernet wire from the router, and hardwired it straight off the cable modem.
Now, for thoes of you who are fast thinkers, you might be thinking "well...how the hell is Big Al still on line and typing this post..."
Which gets me to problem 3
How am I still on line? I do not have my phone line hooked up, and my Network Icon still says that I am connected to the network, but at a low 11mbps.
I can only assume I highjacked someone elses wireless set up, and Im running through that system, probably one of my neighbors as our houses are close together.
When I click on my Linksys green icon, it says on the site survey, there are 4 different networks. The one I am apparently hooked up to is NOT mine.
What is going on, how come my dads computer cant get on line? Im going to be calling Cabelvision soon so I can figure this crap out.