A website has reported that there is a strange bug on the Wi-Fi Link 5000 chip from Intel. It doesn’t talk/communicate with 64-bit or 128-bit WEP security and keys that contain all zeroes in hex format.
This means that a key with a ‘0000000000′ access point cannot communicate with a Centrino 2 notebook.
The article notes that the operating system is not part of the problem since access points run on older laptops with a variety of operating systems. This bug does not occur on WPA or with non-zero WEP keys.
Centrino 2 was just released and this bug is considered as very, very minor.
Source: Register Hardware

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Heh this seems like more of a feature to me!
That is such a weak key for an already weak wireless encryption method.
WPA all the way!