I'm a ubuntu user for a long time and always preferred to use LTS versions. But I decided to give a chance to 11.10 while 12.04 don't show up. But the wifi on 11.10 is not very stable which keeps me back on my 10.04 installation. Here is the deal i have the following card (lspci):
0c:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection (rev 61)
I use my laptop (mainly) in three places. At home I use WPA and it works just fine. At work and the University they use WPA2 and it stays very unstable. It connects successfully but after a few minutes it drops. Only a new reconnection would bring it back online.