I am seeing this also. I've been using ubuntu testing for greater than a year and the problem persists. I am have a Dell D830 were lspci shows "Broadcom Corporation BCM4311 802.11b/g WLAN". The laptop is interacting with an Asus router running DD-WRT and am using WPA encryption. The error I see in syslog when my connection drops is (xx:xx:xx:xx:xx:xx is my router's ethernet mac):
Aug 24 10:51:08 laptop kernel: [111559.898893] eth1: Michael MIC verification failed for MSDU from xx:xx:xx:xx:xx:xx keyidx=0 Aug 24 10:51:08 laptop kernel: [111559.898913] key[0] alg=TKIP key_set=1 tx_pn=000000026c26 rx_pn=00000004c311 replays=80 icv_errors=0 local_mic_failures=2 Aug 24 10:51:08 laptop kernel: [111559.898916] : TKIP stats from module: Ucast Aug 24 10:51:08 laptop NetworkManager: <info> (eth1): supplicant connection state: completed -> disconnected It seems to happen when a there is a demand for a burst of data. It most often is noticeable when watching an HD video with mythtv over the wireless link as the interruption immediately stops the video. There are points in some videos when the datastream bandwidth varies and at that point the connection will drop 4 out of 5 times. -- Wi-fi with WPA an ipw2200 disconnects https://bugs.launchpad.net/bugs/226415 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
