Computer Connects To Wifi But Internet Access Stopped After 5-10 Minutes

Mar 31, 2012

My computer connects to an unscured wifi near my home and i have internet acces for a few minuets, then it just stoppes. Sometimes if i reconnect it will run for a few more minuets 5-10. I have tried two different computers with same results. about a month ago the connection worked fine. This just started recently.I can connent and access internet at other public places with no problem. It seems only this network i have trouble with, why?I am running XP on one, and Win 7 on other, same results.I have read alot of things and tried them all,

-resetting internet options
- changing tcp/ip
- system restore with no results.

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P.S.
Xirrus pictures =

1. taken from the back of the house (not connected to the network) where the laptop is used a majority of the time. Although the strength isn't the best, there didn't seem to be any problems in the two weeks prior to this.

2. taken from the same room as the modem and router, connected to the network, but with "limited/no connectivity"

Command Prompt:

Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:Windowssystem32>ipconfig/all[code].....

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[code]....

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Quote:

C:Windowssystem32>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : Trauma

[Code]......

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