Today I have good news. The problem seems to be fixed for me. I'm running Oneiric on a Thinkpad T520 with a Ultimate-N 6300 AGN wireless chipset. Today I got the ubuntu update notification announcing a new kernel to be installed. As I reviewed the changelog I noticed that the kernel was updated to include the latest compat-wireless: https://bugs.launchpad.net/ubuntu/+source/linux-backports- modules-2.6.32/+bug/918351
I gave it a shot, so before booting into the new kernel I removed the workaround mentioned in post #42 which simply disabled 11n mode. After reboot Network-Manager connection information showed me a connection in 11n mode at 270 Mbs (router was like 5 m from me). I tested by uploading a video file of 1.3 GB to my NAS. It was transferred at an average speed of 9.6 MB/s. After the transfer I checked the output of ifconfig stating no errors or dropped packages for wlan0. BINGO! Guys I hope that will work for all of you, too. Just try it. -- 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
