[Bug 340418] Re: iwl3945 slow down after some time to 100kbps, unload/load module return speed to 1.5mbps

[Derek Dolney]

I experienced this issue on gentoo. I eventually figured out that it was
caused by power management for the wireless device. Check whether your
kernel was built with CONFIG_CFG80211_DEFAULT_PS. I can transfer data
all night without the speed drop if I disable this option.

As an alternative to rebuilding your kernel, there may be a boot option
to disable power management, or you can try iwconfig wlan0 power off,
but I get "Operation not supported" with iwconfig and I'm not sure why.

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iwl3945 slow down after some time to 100kbps, unload/load module return speed to 1.5mbps
https://bugs.launchpad.net/bugs/340418
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