First it was Limited connection on our router which I couldn't connect to Wifi on laptop or anything. Then I tried to connect to my grandma's wifi, which connected and said there was internet but it wasn't true. Both of us have the same ISP so that shouldn't be the problem. After an hour the internet came and I connected to it, said I was connected but again, it wasn't true. I tried reconnecting to wifi, restarting laptop but still no internet. On my mobile and ipod I did have internet, same to the TV but not on my laptop. What do you think is causing this, and I really need an answer since tomorrow I need to print stuff for school.