dropping WLan connection wioth NM 0.6.2

[Dieter Steiner <spoilerhead gmail com>]

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please CC me, i'm not subscribed, thank you.

Hello, when using NM 0.6.2 (ubuntu 6.06.1)
i observed a strange behavior that happens when using the NM and Wlan,
but doesn't happen when i connect to the Wlan without NM (through
/etc/network/interfaces and wifi-radar)

it randomly drops the line in an interval of 5-20 seconds.

please check the screen shots i made:

without network manager (121 kb)
http://stud3.tuwien.ac.at/~e0326004/nm/no_network_manager.png

with network manager (382 kb)
http://stud3.tuwien.ac.at/~e0326004/nm/mitnetworkmanager.png

load on the line was about 2-2.5 MB/s, so about 15-20 MBits. As you can
see, with the network manager the line constantly drops (wlan activity
led goes off, too), with direct connection the line stays constant for
hours.

It only happens if the line is in "strong" use. Activities that won't
use much bandwith (like ssh) don't show that behavior.

Card is an ipw2200, for testing the access point was about 50 cm distant
to the laptop, no other wireless users.

Dieter Steiner
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