FYI, I'm getting VERY similar errors on my raspberry pi with an Bus 001 Device 004: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter To me this sounds as if the "ath" driver is not at fault, but something else. The fact that the older laptop DOES suffer this problem and the newer one not, may implicate slower processors, and that in turn correlates nicely with that the rpi has this problem.
Here is my syslog: Sep 24 08:04:41 raspberrypi wpa_supplicant[1042]: wlan0: WPA: Group rekeying completed with 40:4a:03:c0:bb:cf [GTK=TKIP] Sep 24 08:16:49 raspberrypi wpa_supplicant[1042]: wlan0: WPA: Group rekeying completed with 40:4a:03:c0:bb:cf [GTK=TKIP] Sep 24 08:20:36 raspberrypi wpa_supplicant[1042]: wlan0: WPA: Group rekeying completed with 40:4a:03:c0:bb:cf [GTK=TKIP] Sep 24 08:25:46 raspberrypi wpa_supplicant[1042]: wlan0: WPA: Group rekeying completed with 40:4a:03:c0:bb:cf [GTK=TKIP] Sep 24 08:25:46 raspberrypi wpa_supplicant[1042]: wlan0: Michael MIC failure detected Sep 24 08:25:46 raspberrypi wpa_supplicant[1042]: wlan0: WPA: Sending EAPOL-Key Request (error=1 pairwise=0 ptk_set=1 len=99) Sep 24 08:25:46 raspberrypi wpa_supplicant[1042]: wlan0: Michael MIC failure detected Sep 24 08:25:46 raspberrypi wpa_supplicant[1042]: wlan0: WPA: Sending EAPOL-Key Request (error=1 pairwise=0 ptk_set=1 len=99) Sep 24 08:25:46 raspberrypi wpa_supplicant[1042]: wlan0: TKIP countermeasures started Sep 24 08:25:46 raspberrypi wpa_supplicant[1042]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=0 Sep 24 08:25:46 raspberrypi wpa_supplicant[1042]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=0 Sep 24 08:25:47 raspberrypi ifplugd(wlan0)[1034]: Link beat lost. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/580753 Title: ath9k module causing MIC challenge failures To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/580753/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
