Gateway NV53 Wireless Adapter Disappearing?

Sep 24, 2011

I'm trying to diagnose & repair a problem with the built in wireless adapter on a gateway NV53. The OS is 64 bit Win 7. The computer isn't mine, I was just trying to repair it for a friend. Initially, the wifi worked fine; the disk drive seemed to have a bad laser or something, sometimes there were problems with printers, it was slow to start, etc., so I thought I would just backup everything, "restore to factory defaults" (reformat & reinstall OS from hidden partition), then copy everything back / reinstall programs. I wanted to reformat just to clean it up, etc. After reformatting and updating windows to the latest version, it seemed to work fine (I hadn't tested those other problems, they are unimportant). However, after the computer is on for awhile - anywhere from a few minutes to a few hours - the wireless adapter suddenly can't see any networks. There are several networks in the area, so I know it isn't a problem with my router (also, other comps. can see them all still) After awhile longer, the wireless adapter disappears completely from device manager. I think that when it initially loses track of all the networks, the mouse, typing, etc. slow down and have jerky movement for a minute (may be incidental). When I restart the computer, the adapter works fine again, but of course, only for awhile.

Things I've tried:

-Setting the power settings on the adapter (don't allow power saving to turn this off.. box)
-reformatting
-updating drivers
-updating windows
-running antivirus
-uninstalling the antivirus

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Windows IP Configuration

Host Name . . . . . . . . . . . . : Owner-HP
Primary Dns Suffix . . . . . . . :
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[code]...

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Desktop
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Playstation 3
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Code:
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:UsersJohn>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : John-PC
Primary Dns Suffix . . . . . . . :

[code]....

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'TECHNICAL' SPECS
 
 Local Router LAN/WAN Settings:
LAN IP: 192.168.121.1 on default VLAN (1)
VLAN 13 defined 192.168.131.1 with DHCP enabled; Reservations created outside of DHCP scope
VLAN 14 defined 192.168.141.1 with DHCP enabled, Reservations created outside of DHCP scope
Inter VLAN Routing enabled for all VLANs

[URL]

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[Code]....

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[code].....

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