You are too far from the router.
This might help. http://www.askaboutmoney.com/showthread.php?t=112187
Usually you do not have to do that. Either your wireless adapter is relatively weak your router. If your router has movable antennas see if you can adjust it to get better signal.
You could attach an external directional antenna. Google for 'wireless antenna'.
Try moving the router or getting a better wireless card for your laptop or computer.
The main equipment you need to set up laptop wireless internet access is a functioning wireless adapter and a router connecting to the internet. You also need to be in signal range of the router.
If you do have a wireless router on, you don't need any other computer to be on, say if you have a laptop downstairs, and a computer with the router upstairs, the computer can be off, but the router has to stay on, and you can access the internet using the laptop from downstairs, if you have a good enough signal. Hope this helps!
It is always broadcasting just like the radio, the wireless receiver in your computer or laptop does not send out a signal, that's why you can buy wireless network finders that all you do is click a button to see if there is wireless.
you should have got a free McAfee virus protect with your laptop, just unistall that, restart your laptop and it works again.
the laptop is too far away from the source of the signal
How can I improve the wifi signal strength for my laptop computer? How can I improve the wifi signal strength for my laptop computer? How can I improve the wifi signal strength for my laptop computer? How can I improve the wifi signal strength for my laptop computer? How can I improve the wifi signal strength for my laptop computer? How can I improve the wifi signal strength for my laptop computer?
through wireless modem
buy a wireless signal router from walmart best buy or staples and office depot