Comment 34 for bug 429035

psychok7 - yep, on my second laptop which has an ipw2100 card (ipw2100 driver):
* installing the compat-wireless drivers (which should be equivalent to installing the backport modules packages) made the card work perfectly
* and then upgrading the kernel to 2.6.28-16-generic (this is on a xubuntu 9.04 machine), also worked fine, with no need to install the backport drivers

On my main, Ubuntu 9.04 laptop, which has an intel 4965 (iwlwifi driver), the backport drivers made it work perfectly (i have had *no* dropped connections *at all* since). I haven't had time to reboot to the newer kernel to see if that worked.

As for WPA/WPA2: that was my original comment, and i think that's what everybody's problem is: there's no problem with an unencrypted or a WEP AP, but the connection will drop very often with a WPA/WPA2 AP. Then again, i didn't get that behavior at all on another (Dlink-something) AP (i.e., on that AP, upgrading to WPA and not upgrading my drivers still worked fine). I do get that behavior with my WRT54GL AP. The bug seems to triggered with a combination of:
* certain APs, not all
* WPA/WPA2, neither clear nor WEP
* certain Intel cards
* not just the iwlwifi driver

Unfortunately, no one else is coming back to confirm or infirm that information...