I believe I've found another interesting aspect to this issue. I believe it is actually capable of forcing my Motorola Surfboard 6120 cable modem to reboot. When using a wireless connection to do a git repo sync with Cyanogenmod (or anything that involves a substantial download), my cable modem will reboot every few minutes with the following logged errors.
Cable Modem Reboot due to T4 timeout ;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.0; Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.0; Ranging Request Retries exhausted;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.0; No Ranging Response received - T3 time-out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.0; If I use a wired connection and disable wireless, I can do these synchronizes without a problem on the cable modem. Other machines on the network don't have issues, pointing directly at this Intel wireless problem. What I find most interesting about this is that there is a wireless router, switch and Linux router in the networking path within the house. I don't know enough about networking to understand how the wireless driver/hardware could possibly be creating packets that flow through the network and crater the cable modem. Very strange indeed. I'm pondering whether I need to re-install to roll back to 11.04 where networking was stable. I see that there is ongoing conversation with the Intel wireless driver folks, but does anyone have an idea if/when this might be fixed? -- 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
