It looks like (bearing in mind this is somewhat intermittent) that this problem does not exist in the upstream kernel:
Linux joy 3.3.0-030300rc7-generic #201203101735 SMP Sat Mar 10 22:36:28 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux (at least, I have downloaded a few hundred MB at 1.5MB/s over wireless with no problems yet.) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/956732 Title: x201 iwlwifi drops out under heavy load To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/956732/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs