Some problem with the intel iwl4965 driver. It occured with one of the last updates. Disabling N with "sudo modprobe iwl4965 11n_disable=1" solves the problem. I don't even have an N-capable router.
lshw reports: configuration: broadcast=yes driver=iwl4965 driverversion=3.0.0-16-generic firmware=228.61.2.24 ip=192.168.1.128 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn -- 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] [Regression] 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/linux/+bug/836250/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
