Another thing I have noticed. The ping times to the router on the HP Elitebook are consistently 3ms when running quantal. The "working" test configurations (HP Elitebook/Lucid,HP Elitebook/Windows7,Thinkpad T61p/Quantal) all show consistently under 1ms. This is when the connection is working stably, after a time when the connection starts degrading (tx fifo queu failure messages), ping times start to go up considerably and become highly erratic. Ping is a limited test tool but this is curious.
After using the machine throughout the day I have seen the complete progression of the issue. After restarting my machine and my router, the wifi performs reasonably well (excepting the consistent 3ms ping). I used the machine normally for around 5 hours today before I started to see performance degradation. The ping times start to randomly increase and over the course of ten or twenty minutes go from a consistent 3ms to all over the map (some in the thousands of ms, others in the hundreds). I notice significant lag in all network connections. Once the ping times get unstable enough I start to get the "fail to flush all tx fifo queues", and start seeing packet loss. The strangest part about it is that this degradation is persistent across reboots. It goes away temporarily if I reboot my router. I would say this is a router issue except that it does not affect any other machines in the house (or this machine running Lucid), and I get the same issue on many other networks. It seems to be related in some way to the state of the router. I do notice that my Bit Rate changes continually between calls to iwconfig. I will keep investigating. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1039205 Title: 8086:4238 iwlwifi lost connections and poor performance with mixed networks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1039205/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
