i installed ubuntu 11.10 and i am trying to connect my laptop through wifi. but the wireless isn't working. my wilreless is:
Intel Corporation PRO/Wireless 2915ABG [Calexico2] Network Connection (rev 05)
My laptop is a Dell Xps M140
I was having a similar problem after a fresh install of Ubuntu 11.10 on my Dell Studio XPS with an Intel wireless card. Network traffic was very slow, down to barely a trickle.
Resolve slow connexion when using wifi in ubuntu 11.04, 11.10 Oneiric Ocelot and LinuxMint11 suggests disabling IPv6 or ath9k hardware encryption, but neither resolved the issue.
A couple of comments did the trick for me, however.
I had the same problem in all distributions of Linux I tried recently.
Finally this was the answer, but instead of