Windows Xp Internet keeps disconnecting every 5 minutes, limited or no connectivity

[yarjarrar]

I have windows xp sp3 and while playing my game, the internet keeps disconnecting about every 5 minutes. Then a bubble comes up and says, "Limited or no connectivity" and I have no internet. So I have to disconnect and connect again to get another 5 minutes before it does it again. The modem I have is this: Verizon GT704WG Wireless DSL Modem/Router
To narrow the problem down I went to another house with another wireless and it worked without any problem there.

 

[yarjarrar]

I did Windows Update and got 16 updates downloaded and installed. So I went back and tried again and it disconnected as usual, NOooooooooooo!! Any help in appreciated.