I installed 3.1.0-030100-generic #201110241006 SMP Mon Oct 24 14:07:10 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux and did some further testing. With the router operating in N mode the connection is stable and performance is very good. When I switch the router to B/G/Mixed (no N), the connection is stable but the performance is bad as noted in #54/55. I tried with 2 different routers (Atheros and Broadcom based) with the same results.
So my experience is as follows. Sometime after 2.6.38-11 and before 3.0.0-12, G performance took a turn for the worse and is almost unusable even with 3.1.0. Then somewhere after 3.0.0-12 and before 3.1.0-RC6, N started working. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/836250 Title: [Oneiric] Intel Corporation Centrino Ultimate-N 6300 poor networking, packet loss and very slow Lenovo X201 and T500 laptops To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/836250/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs