kern/37753: issues of wpi in WPA and WEP networks

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>Number:         37753
>Category:       kern
>Synopsis:       issues of wpi in WPA and WEP networks
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Jan 14 10:00:01 +0000 2008
>Originator:     Alexander V. Butenko
>Release:        netbsd-current
>Organization:
>Environment:
>Description:
I have wpa encrypted wireless network at home and wep encrypted network in my 
office. i can't work with netbsd-4.0 and netbsd-current in both of them. 

wpa_supplicant connects to my wpa network but disconnects during 1-20 minutes. 

in the office i can connect to a wep network with 64bit key, but i can't get an 
ip via dhcp or i can't ping my wireless after i enter settings manualy.

iwconfig in linux shows 70-90% of link quality.
>How-To-Repeat:
using wpi wireless connect to WEP and WPA (wth wpa_suplicant) networks. 

>Fix: