I do believe I'm getting something similar to this. I don't have anything in logs that would suggest a fail, but after a period of around 4-6 hours network inactivity, my system will freeze once I start using the network device again (ie: checking for updates). General Information: cat /proc/interrupts 17: 159718 IO-APIC-fasteoi wifi0 dmesg | grep -i wifi [ 20.192961] wifi0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps [ 20.192968] wifi0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps [ 20.192976] wifi0: turboG rates: 6Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps [ 20.192982] wifi0: H/W encryption support: WEP AES AES_CCM TKIP [ 20.192985] wifi0: mac 7.9 phy 4.5 radio 5.6 [ 20.192991] wifi0: Use hw queue 1 for WME_AC_BE traffic [ 20.192993] wifi0: Use hw queue 0 for WME_AC_BK traffic [ 20.192995] wifi0: Use hw queue 2 for WME_AC_VI traffic [ 20.192997] wifi0: Use hw queue 3 for WME_AC_VO traffic [ 20.192998] wifi0: Use hw queue 8 for CAB traffic [ 20.193000] wifi0: Use hw queue 9 for beacons [ 20.218162] wifi0: Atheros 5212: mem=0xf9fe0000, irq=17 dmesg | grep -i ath [ 0.400786] CPU0: AMD Athlon(tm) 64 Processor 3000+ stepping 02 [ 19.256625] ath_hal: 0.9.18.0 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413) [ 19.336599] ath_pci: 0.9.4 [ 19.337070] ath_pci 0000:00:09.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 [ 20.191841] ath_rate_sample: 1.2 (0.9.4) [ 20.218162] wifi0: Atheros 5212: mem=0xf9fe0000, irq=17 [ 63.604024] ath0: no IPv6 routers present ifconfig ath0 Link encap:Ethernet HWaddr 00:18:4d:76:46:37 inet addr:192.168.1.8 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::218:4dff:fe76:4637/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:14489 errors:0 dropped:0 overruns:0 frame:0 TX packets:9537 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:21146079 (21.1 MB) TX bytes:843931 (843.9 KB) wifi0 Link encap:UNSPEC HWaddr 00-18-4D-76-46-37-00-00-00-00-00-00-00-00-00-00 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:62518 errors:0 dropped:0 overruns:0 frame:8135 TX packets:10950 errors:13 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:199 RX bytes:46409896 (46.4 MB) TX bytes:1305294 (1.3 MB) Interrupt:17 lsmod | grep ath ath_rate_sample 21248 1 ath_pci 109168 0 wlan 234784 6 wlan_tkip,wlan_ccmp,wlan_scan_sta,ath_rate_sample,ath_pci ath_hal 225904 3 ath_rate_sample,ath_pci Also, don't know the importance of it, but this happens every 2-5 minutes, and is the last thing that is logged before each crash. (This is a merge between the daemon.log and kern.log) Mar 20 05:55:01 intrepid NetworkManager: (ath0): supplicant connection state change: 7 -> 0 Mar 20 05:55:01 intrepid NetworkManager: (ath0): supplicant connection state change: 0 -> 4 Mar 20 05:55:01 intrepid NetworkManager: (ath0): supplicant connection state change: 4 -> 5 Mar 20 05:55:01 intrepid kernel: [ 320.227308] rix 255 (0) bad ratekbps 0 mode 6 Mar 20 05:55:01 intrepid kernel: [ 320.227315] rix 255 (0) bad ratekbps 0 mode 6 Mar 20 05:55:01 intrepid kernel: [ 320.227317] rix 255 (0) bad ratekbps 0 mode 6 Mar 20 05:55:01 intrepid kernel: [ 320.227319] rix 255 (0) bad ratekbps 0 mode 6 Mar 20 05:55:01 intrepid kernel: [ 320.227320] rix 255 (0) bad ratekbps 0 mode 6 Mar 20 05:55:01 intrepid kernel: [ 320.227322] rix 255 (0) bad ratekbps 0 mode 6 Mar 20 05:55:01 intrepid kernel: [ 320.227324] rix 255 (0) bad ratekbps 0 mode 6 Mar 20 05:55:01 intrepid kernel: [ 320.227326] rix 255 (0) bad ratekbps 0 mode 6 Mar 20 05:55:01 intrepid kernel: [ 320.227327] rix 255 (0) bad ratekbps 0 mode 6 Mar 20 05:55:01 intrepid kernel: [ 320.227329] rix 255 (0) bad ratekbps 0 mode 6 Mar 20 05:55:01 intrepid kernel: [ 320.227331] rix 255 (0) bad ratekbps 0 mode 6 Mar 20 05:55:01 intrepid kernel: [ 320.227332] rix 255 (0) bad ratekbps 0 mode 6 Mar 20 05:55:01 intrepid kernel: [ 320.227334] rix 255 (0) bad ratekbps 0 mode 6 Mar 20 05:55:01 intrepid kernel: [ 320.227336] rix 255 (0) bad ratekbps 0 mode 6 Mar 20 05:55:01 intrepid kernel: [ 320.227337] rix 255 (0) bad ratekbps 0 mode 6 Mar 20 05:55:02 intrepid NetworkManager: (ath0): supplicant connection state change: 5 -> 6 Mar 20 05:55:02 intrepid NetworkManager: (ath0): supplicant connection state change: 6 -> 7 Mar 20 05:55:06 intrepid NetworkManager: (ath0): supplicant connection state change: 7 -> 6 Mar 20 05:55:06 intrepid NetworkManager: (ath0): supplicant connection state change: 6 -> 7 Mar 20 05:58:38 intrepid NetworkManager: (ath0): supplicant connection state change: 7 -> 0 Mar 20 05:58:39 intrepid NetworkManager: (ath0): supplicant connection state change: 0 -> 2 Mar 20 05:58:41 intrepid NetworkManager: (ath0): supplicant connection state change: 2 -> 3 Mar 20 05:58:41 intrepid kernel: [ 540.111143] rix 255 (0) bad ratekbps 0 mode 3 Mar 20 05:58:41 intrepid kernel: [ 540.111158] rix 255 (0) bad ratekbps 0 mode 3 Mar 20 05:58:41 intrepid kernel: [ 540.111165] rix 255 (0) bad ratekbps 0 mode 3 Mar 20 05:58:41 intrepid kernel: [ 540.111171] rix 255 (0) bad ratekbps 0 mode 3 Mar 20 05:58:41 intrepid kernel: [ 540.111178] rix 255 (0) bad ratekbps 0 mode 3 Mar 20 05:58:41 intrepid kernel: [ 540.111184] rix 255 (0) bad ratekbps 0 mode 3 Mar 20 05:58:41 intrepid kernel: [ 540.118627] rix 255 (0) bad ratekbps 0 mode 3 Mar 20 05:58:41 intrepid kernel: [ 540.118639] rix 255 (0) bad ratekbps 0 mode 3 Mar 20 05:58:41 intrepid kernel: [ 540.121616] rix 255 (0) bad ratekbps 0 mode 3 Mar 20 05:58:41 intrepid kernel: [ 540.123547] rix 255 (0) bad ratekbps 0 mode 3 Mar 20 05:58:41 intrepid NetworkManager: (ath0): supplicant connection state change: 3 -> 4 Mar 20 05:58:41 intrepid NetworkManager: (ath0): supplicant connection state change: 4 -> 5 Mar 20 05:58:41 intrepid NetworkManager: (ath0): supplicant connection state change: 5 -> 6 Mar 20 05:58:41 intrepid NetworkManager: (ath0): supplicant connection state change: 6 -> 7 Mar 20 06:00:38 intrepid NetworkManager: (ath0): supplicant connection state change: 7 -> 0 Mar 20 06:00:39 intrepid NetworkManager: (ath0): supplicant connection state change: 0 -> 2 Mar 20 06:00:41 intrepid NetworkManager: (ath0): supplicant connection state change: 2 -> 3 Mar 20 06:00:41 intrepid NetworkManager: (ath0): supplicant connection state change: 3 -> 4 Mar 20 06:00:41 intrepid NetworkManager: (ath0): supplicant connection state change: 4 -> 5 Mar 20 06:00:41 intrepid NetworkManager: (ath0): supplicant connection state change: 5 -> 6 Mar 20 06:00:41 intrepid NetworkManager: (ath0): supplicant connection state change: 6 -> 7 Please ask if you need to know anything else about my hardware/setup. Regards Iain