Dapper is out now for almost 4 months. And I can still not use my wireless, as it freezes up my computer randomly. This bug is labeled critical, but no offical fix has been released yet. As I got tired of the Ethernet cable crossing our whole appartment and like Chris Jones not keen on installing Edgy on my main production machine (stability is also my number one criteria), I tried to install the packages generously provided by the original bug reporter Soren Hansen. These packages allow you to use the madwifi-ng kernel drivers combined with a patched network-manger. I added following line to my apt sources list: deb http://www.linux2go.dk/ubuntu dapper main Did and apt-get update apt-get upgrade which installled me following packages madwifi-ng-default wpasupplicant network-manager libnm-util0 network-manager-gnome So far so good. However, after rebooting the machine, it hanged at the hardware detection point. After a long time it went past this point and booted into X. However, I was not able to get the wireless network running. The new atheros kernel modules were loaded: [~]>lsmod | grep ath new_ath_pci 98980 0 new_ath_rate_sample 14048 1 new_ath_pci new_wlan 205276 4 new_wlan_scan_sta,new_ath_pci,new_ath_rate_sample new_ath_hal 191344 3 new_ath_pci,new_ath_rate_sample and the ath0 device showed up with ifconfig. As mentioned by Ankur Kotwal earlier in this thread, I tried to comment out the contents of the file /etc/udev/rules.d/25-iftab.rules. The machine did not hang anymore during the hardware detection point, but the wirless network didn't work anyway. Grepping the kern.log file for ath leads to following entries during booting: --------------------- snip -------------------- Sep 26 17:41:57 localhost kernel: [17179594.548000] ath_hal: module license 'Proprietary' taints kernel. Sep 26 17:41:57 localhost kernel: [17179594.736000] ath_hal: 0.9.14.9 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413) Sep 26 17:41:57 localhost kernel: [17179594.832000] ath_rate_sample: 1.2 Sep 26 17:41:57 localhost kernel: [17179594.848000] ath_pci: 0.9.6.0 (EXPERIMENTAL) Sep 26 17:41:57 localhost kernel: [17179595.348000] ath0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps Sep 26 17:41:57 localhost kernel: [17179595.348000] ath0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps Sep 26 17:41:57 localhost kernel: [17179595.348000] ath0: turboG rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps Sep 26 17:41:57 localhost kernel: [17179595.348000] ath0: H/W encryption support: WEP AES AES_CCM TKIP Sep 26 17:41:57 localhost kernel: [17179595.348000] ath0: mac 5.9 phy 4.3 radio 4.6 Sep 26 17:41:57 localhost kernel: [17179595.348000] ath0: Use hw queue 1 for WME_AC_BE traffic Sep 26 17:41:57 localhost kernel: [17179595.348000] ath0: Use hw queue 0 for WME_AC_BK traffic Sep 26 17:41:57 localhost kernel: [17179595.348000] ath0: Use hw queue 2 for WME_AC_VI traffic Sep 26 17:41:57 localhost kernel: [17179595.348000] ath0: Use hw queue 3 for WME_AC_VO traffic Sep 26 17:41:57 localhost kernel: [17179595.348000] ath0: Use hw queue 8 for CAB traffic Sep 26 17:41:57 localhost kernel: [17179595.348000] ath0: Use hw queue 9 for beacons Sep 26 17:41:57 localhost kernel: [17179595.348000] ath0: Atheros 5212: mem=0xde800000, irq=177 Sep 26 17:41:57 localhost kernel: [17179597.004000] ath_pci: driver unloaded Sep 26 17:41:57 localhost kernel: [17179597.012000] ath_rate_sample: unloaded Sep 26 17:41:57 localhost kernel: [17179597.016000] ath_hal: driver unloaded Sep 26 17:41:57 localhost kernel: [17179597.032000] new_ath_hal: 0.9.16.16 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413) Sep 26 17:41:57 localhost kernel: [17179597.068000] new_ath_rate_sample: 1.2 (svn 2006-09-18) Sep 26 17:41:57 localhost kernel: [17179597.084000] ath_pci: 0.9.4.5 (svn 2006-09-18) Sep 26 17:42:16 localhost kernel: [17179902.972000] ath0: no IPv6 routers present --------------------- snap ------------------- Greppig kern.log file for wifi lead to this: --------------------- snip -------------------- Sep 26 17:41:57 localhost kernel: [17179597.500000] wifi0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps Sep 26 17:41:57 localhost kernel: [17179597.500000] wifi0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps Sep 26 17:41:57 localhost kernel: [17179597.500000] wifi0: turboG rates: 6Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps Sep 26 17:41:57 localhost kernel: [17179597.500000] wifi0: H/W encryption support: WEP AES AES_CCM TKIP Sep 26 17:41:57 localhost kernel: [17179597.500000] wifi0: mac 5.9 phy 4.3 radio 4.6 Sep 26 17:41:57 localhost kernel: [17179597.500000] wifi0: Use hw queue 1 for WME_AC_BE traffic Sep 26 17:41:57 localhost kernel: [17179597.500000] wifi0: Use hw queue 0 for WME_AC_BK traffic Sep 26 17:41:57 localhost kernel: [17179597.500000] wifi0: Use hw queue 2 for WME_AC_VI traffic Sep 26 17:41:57 localhost kernel: [17179597.500000] wifi0: Use hw queue 3 for WME_AC_VO traffic Sep 26 17:41:57 localhost kernel: [17179597.500000] wifi0: Use hw queue 8 for CAB traffic Sep 26 17:41:57 localhost kernel: [17179597.500000] wifi0: Use hw queue 9 for beacons Sep 26 17:41:57 localhost kernel: [17179597.516000] wifi0: Atheros 5212: mem=0xde800000, irq=177 --------------------- snap ------------------- I am not sure what I am doing wrong here. Does anybody have an idea? Thanks a lot!