Okay, I have tried coming across through all the threads, all the issues seems to be the similar so I am just posting this one.
I have a computer running on XP. I addicted up Lynksys wireless router up to my cable modem for setting up of a wireless network.
I have one more computer with XP running on both of them. I have also installed a Belkin wireless card in it so that it may make use of that wireless connection.
The card installed is working fine but the connection is active. One second is says that no network is obtainable, next second good signal, next weak, then back to no. My first computer also continues to lose the connection now. I consider that I might have checked the internet sharing? How do I disable it so that if it is the issue.

In addition to the second computer with the wireless card says that it has no internet connection even when it says that it has a strong signal on the wireless network. It is not capable of finding the server; also there is no association page.

I make out this is a simple issue but I’m unable to fix it. I now can't actually get online at all without receiving the booting off. I have even cut off the other computer with an idea that it might be bouncing back and forth but nothing. I would really be grateful for some input!