Why can't i get internet connection anywhere else but on my computer?

So i have a netgear wirless router and a arris modem for my computer. All of a sudden, the connection on my phone from netgear was not working so i went on my computer but the connection on it was fine. Right now the connection on my computer is perfect but i just can't get any connection on my xbox, ps3, or iphone 4's. Can anyone please help. This has never happened to me before.

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  • Wi-Fi says I have connection but can't connect to internet? On my iPhone and other phones in the house the Wi-Fi says its connected but when I try to access the Internet it doesn't load. I've turned off the router for awhile and turned it back on. It still didn't work then I reset the router and still doesn't. What can I do?
  • Why does my new computer have a much worse internet connection than old? I just bought a 19.5 HP All in one PC, and the internet connection is very slow. On my old laptop, and iPhone the internet works flawlessly. I have tried scanning for viruses, restarting router, and restarting the computer. Nothing is working. Any ideas?
  • Why does my computer constantly lose internet connection? I have had an hp envy for about a year and ever since the first day it would connect to my router and in 30 seconds it will say i have no network connection or no internet connection. I thought it was the new router i got but i replaced it and this still happened, all of my other Wi-Fi devices (iphone, ipad, xbox 360, wii) connect fine and never have this problem. Why does my laptop do this and how can i fix it?
  • My internet dies, but no one else in my house loses it. What? So this thing happens every so often where my computer and iphone loses connectivity to the internet (despite having full bars). This seems to affect only my room of the house. The stranger part is that I regain connectivity both to my phone and actual computer once I restart my computer. Is there something I'm missing here? Please.