System running 12.10 also experiencing the microcode error, resulting in drop outs, high packet loss and routing issues.
$ lspci -v 04:00.0 Network controller: Intel Corporation WiFi Link 5100 Subsystem: Intel Corporation WiFi Link 5100 AGN Flags: bus master, fast devsel, latency 0, IRQ 44 Memory at d0400000 (64-bit, non-prefetchable) [size=8K] Capabilities: <access denied> Kernel driver in use: iwlwifi Kernel modules: iwlwifi $uname -a Linux guy-ThinkPad-X100e 3.5.0-17-generic #28-Ubuntu SMP Tue Oct 9 19:31:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux I can confirm disabling 11n option gives me a rock solid connection: $ sudo su $ echo 'options iwlwifi 11n_disable=1' >> /etc/modprobe.d/iwlwifi.conf $ rmmod iwlwifi $ modprobe iwlwifi -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/944271 Title: iwlwifi: Microcode SW error detected. Restarting 0x2000000 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/944271/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs