Hi, I work at a helpdesk and constantly prepare new computers for employees to use. We have a protected wireless network, which is set up with WPA-PSK authentication and TKIP data encryption. When I set up computers to use the wireless network, there are usually no problems at all. We mostly use Dell products, but were given several IBM ThinkPad T40 and T41 laptops. When I set those up to use our wireless network, they behaved very strangely. The wireless would work on some laptops but not on others. Then a half hour later, the ones that were working stopped working and the ones that weren't working started working. Later on, none of them would work. A little later on, all of them would work. It was very, very odd. I experimented with a couple of the laptops. I updated the BIOS and the embedded control, but that didn't help. The laptops were set up using an image, so I thought maybe there was a problem with our image. However, after a fresh install of Windows XP SP3, the problem remained. Then I thought that the wireless cards might not be compatible with SP3, so I did a fresh install of Windows XP SP2, but the problem remained. I've installed the latest drivers and played around in the BIOS, but nothing helps. It's such an odd problem, and I'm not sure what to do next. Some of the laptops have "Cisco Systems PCI Wireless LAN Adapter" cards and others have "Gigabyte GN-WI01GS mini PCI WLAN Card(Turbo)" cards, so I'm guessing the problem is with the laptops themselves. Any thoughts?
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