Can router configurations prevent redirection?

We had a wireless connection once. Now it is disconnected, like everytime I connect to the internet, it redirects to the official site of my isp. I thought it can’t be bypassed anymore unless you buy an account that then allows you to surf the net. What very weird is that my neighbor also had the same disconnected connection and now he bypassed the redirection and can now surf the net. He paid a friend of his that is very good at computers to do something to his computer. they purchased a router, I don’t know why they bought one because the wireless internet uses a canopy. Then, with mere proxies and other configurations to the canopy, router and his browser, he can surf the net freely! OMG! Can someone explain to me how that dude who helped him did that?
oh, we don’t have a router, and we paid the bills until i got dissatisfied and tried to get another one. I m just asking how the hell did they bypass the redirection. Thanks for the info though

Did you pay your ISP connection bill?

Turn a PC off. Connect the PC (wired) to your broadband modem.
Reset your modem: Push & hold the RESET button. Wait a minute. Turn PC on. Test Internet Connection.

Again, did you pay your ISP connection bill?

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