Comment 1 for bug 373680

I found other bug that seems related to mine.

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/350221

They say that the problem is with mac80211 and no network manager and that will be solved in Karmic.

If thats is true, how can be possible that I dont have the problem if I am connected using iwconfig instead of network-manager?