I have an odd problem with a wireless network.
I have 3 Dell laptops in the house, which we'll call BlackDell, BlueDell and Dellbert. There's also a Tosh. We have a ClearWire hotspot modem. All 4 machine have been accessing the hotspot for about a year. Now, there's a problem with Dellbert. When Dellbert connects to the ClearWire, it completely freezes within 4 minutes. It doesn't matter if if the machine is active or idle.
BlackDell, BlueDell and Tosh connect fine (I'm using BlueDell to post this).
Dellbert can connect to any other wireless and run for days.
Dellbert generally runs Win7 64. However, I have a Debian Squeeze install on an external drive. If I boot into Debian, Dellbert happily connects to the network and will run for hours.
Network card is Dell 1501 (Broadcom)
All in all, I'm pretty sure that something stored or cached somewhere is corrupt, but I have no idea. I hadn't used the machine in the house for a few months, kept it in the office, so I don't know when it may have stopped. Loads of Windows updates in that time, so it could have been any of them.
I've deleted the network.
I've reset winsock.
I've run out of ideas.