I don't know what's wrong

When we got home from Vei Ann’s last night, I couldn’t connect to the internet. I mean the DSL and Wi-Fi are working well, but I couldn’t open any window.

What’s weird was my brother can connect on the internet on my sister’s computer.

It really pissed me off. I was up until 2 in the morning and still, no connection.

I thought it always happens like this because of the brownouts. But then, I realized it has something to do with my laptop or my Wireless since the other computers have their internet working well, while mine doesn’t. :(