Comment 13 for bug 264881

Got very similar problem with nm but with 2.6.24-21.
It looks to me that it may be related to the signal strength and or the proximity of another AP with signal level close to the one to which i'm connected at the moment.
If I work at a couple of meter from my home AP nm seems to never lose the connection.

sudo modprobe -l iwl*
/lib/modules/2.6.24-21-generic/ubuntu/wireless/iwlwifi/mac80211/compatible/net/mac80211/iwlwifi_mac80211.ko
/lib/modules/2.6.24-21-generic/ubuntu/wireless/iwlwifi/mac80211/compatible/net/mac80211/iwlwifi_rc80211_simple.ko
/lib/modules/2.6.24-21-generic/updates/iwl3945.ko
/lib/modules/2.6.24-21-generic/updates/iwl4965.ko
/lib/modules/2.6.24-21-generic/updates/iwlcore.ko