Comment 49 for bug 548992

So I'm having the same issue, but for me the issue has only appeared in busy wireless environments, for example at my university (using eduroam) during daytime where a connection will rarely be established and if it succeeds it'll drop within seconds. Booting Windows XP proves that the network and hardware is not at fault since the connection is then perfectly stable.

At home, where there are no other wireless networks within range (except my own), the connection is rock stable under both (x)ubuntu and winxp and is maintained without a single disconnect for hours and hours.

Will try changing network-manager for wicd and see if it has any effect, although my gut feeling is that the cause lies elsewhere.