Hi Brad, I don't know what happened exactly but there's something that break wifi connectivity with newest kernel versions.
For example with other hardware: *-network description: Wireless interface product: WiFi Link 5100 vendor: Intel Corporation physical id: 0 bus info: pci@0000:03:00.0 logical name: wlan0 version: 00 serial: 00:21:5d:ec:ac:14 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlwifi driverversion=3.5.0-25-generic firmware=8.83.5.1 build 33692 ip=192.168.90.101 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn resources: irq:45 memory:febfe000-febfffff Distributor ID: Ubuntu Description: Ubuntu 12.10 Release: 12.10 Codename: quantal It's impossible to use the wifi under kernel: 3.5.0-27.46, 3.5.0-28.48. As you can see on the logs: May 9 12:40:53 luna wpa_supplicant[1409]: wlan0: SME: Trying to authenticate with XX:XX:XX:XX:XX:XX (SSID='Octi' freq=2472 MHz) May 9 12:40:53 luna kernel: [ 35.781358] wlan0: authenticate with XX:XX:XX:XX:XX:XX May 9 12:40:53 luna kernel: [ 35.784947] iwlwifi 0000:03:00.0: Microcode SW error detected. Restarting 0x2000000. May 9 12:40:53 luna kernel: [ 35.784954] iwlwifi 0000:03:00.0: CSR values: May 9 12:40:53 luna kernel: [ 35.784958] iwlwifi 0000:03:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG) May 9 12:40:53 luna kernel: [ 35.784965] iwlwifi 0000:03:00.0: CSR_HW_IF_CONFIG_REG: 0X00488704 May 9 12:40:53 luna kernel: [ 35.784972] iwlwifi 0000:03:00.0: CSR_INT_COALESCING: 0X0000ff40 May 9 12:40:53 luna kernel: [ 35.784978] iwlwifi 0000:03:00.0: CSR_INT: 0X00000000 May 9 12:40:53 luna kernel: [ 35.784985] iwlwifi 0000:03:00.0: CSR_INT_MASK: 0X00000000 May 9 12:40:53 luna kernel: [ 35.784992] iwlwifi 0000:03:00.0: CSR_FH_INT_STATUS: 0X00000000 May 9 12:40:53 luna kernel: [ 35.784998] iwlwifi 0000:03:00.0: CSR_GPIO_IN: 0X00000000 May 9 12:40:53 luna kernel: [ 35.785005] iwlwifi 0000:03:00.0: CSR_RESET: 0X00000000 May 9 12:40:53 luna kernel: [ 35.785011] iwlwifi 0000:03:00.0: CSR_GP_CNTRL: 0X080403c5 May 9 12:40:53 luna kernel: [ 35.785018] iwlwifi 0000:03:00.0: CSR_HW_REV: 0X00000054 May 9 12:40:53 luna kernel: [ 35.785025] iwlwifi 0000:03:00.0: CSR_EEPROM_REG: 0X00000000 May 9 12:40:53 luna kernel: [ 35.785031] iwlwifi 0000:03:00.0: CSR_EEPROM_GP: 0X90000004 May 9 12:40:53 luna kernel: [ 35.785038] iwlwifi 0000:03:00.0: CSR_OTP_GP_REG: 0X00060000 May 9 12:40:53 luna kernel: [ 35.785044] iwlwifi 0000:03:00.0: CSR_GIO_REG: 0X00080044 May 9 12:40:53 luna kernel: [ 35.785051] iwlwifi 0000:03:00.0: CSR_GP_UCODE_REG: 0X000007b8 May 9 12:40:53 luna kernel: [ 35.785058] iwlwifi 0000:03:00.0: CSR_GP_DRIVER_REG: 0X00000000 May 9 12:40:53 luna kernel: [ 35.785064] iwlwifi 0000:03:00.0: CSR_UCODE_DRV_GP1: 0X00000000 May 9 12:40:53 luna kernel: [ 35.785071] iwlwifi 0000:03:00.0: CSR_UCODE_DRV_GP2: 0X00000000 May 9 12:40:53 luna kernel: [ 35.785077] iwlwifi 0000:03:00.0: CSR_LED_REG: 0X00000058 May 9 12:40:53 luna kernel: [ 35.785084] iwlwifi 0000:03:00.0: CSR_DRAM_INT_TBL_REG: 0X8806ff2b May 9 12:40:53 luna kernel: [ 35.785091] iwlwifi 0000:03:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200 May 9 12:40:53 luna kernel: [ 35.785097] iwlwifi 0000:03:00.0: CSR_ANA_PLL_CFG: 0X00880300 May 9 12:40:53 luna kernel: [ 35.785104] iwlwifi 0000:03:00.0: CSR_HW_REV_WA_REG: 0X0001001a May 9 12:40:53 luna kernel: [ 35.785111] iwlwifi 0000:03:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0000 May 9 12:40:53 luna kernel: [ 35.785114] iwlwifi 0000:03:00.0: FH register values: May 9 12:40:53 luna kernel: [ 35.785131] iwlwifi 0000:03:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X07307000 May 9 12:40:53 luna kernel: [ 35.785146] iwlwifi 0000:03:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X0072b7d0 May 9 12:40:53 luna kernel: [ 35.785161] iwlwifi 0000:03:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000058 May 9 12:40:53 luna kernel: [ 35.785176] iwlwifi 0000:03:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80811104 May 9 12:40:53 luna kernel: [ 35.785191] iwlwifi 0000:03:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc May 9 12:40:53 luna kernel: [ 35.785206] iwlwifi 0000:03:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000 May 9 12:40:53 luna kernel: [ 35.785221] iwlwifi 0000:03:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000 May 9 12:40:53 luna kernel: [ 35.785237] iwlwifi 0000:03:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001 May 9 12:40:53 luna kernel: [ 35.785252] iwlwifi 0000:03:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000 May 9 12:40:53 luna kernel: [ 35.785256] iwlwifi 0000:03:00.0: Loaded firmware version: 8.83.5.1 build 33692 May 9 12:40:53 luna kernel: [ 35.785371] iwlwifi 0000:03:00.0: Start IWL Error Log Dump: May 9 12:40:53 luna kernel: [ 35.785375] iwlwifi 0000:03:00.0: Status: 0x0000004C, count: 5 May 9 12:40:53 luna kernel: [ 35.785379] iwlwifi 0000:03:00.0: 0x00000005 | SYSASSERT May 9 12:40:53 luna kernel: [ 35.785383] iwlwifi 0000:03:00.0: 0x0001DFB0 | uPc May 9 12:40:53 luna kernel: [ 35.785386] iwlwifi 0000:03:00.0: 0x0001DF94 | branchlink1 May 9 12:40:53 luna kernel: [ 35.785390] iwlwifi 0000:03:00.0: 0x0001DF94 | branchlink2 May 9 12:40:53 luna kernel: [ 35.785393] iwlwifi 0000:03:00.0: 0x00000916 | interruptlink1 May 9 12:40:53 luna kernel: [ 35.785397] iwlwifi 0000:03:00.0: 0x00000000 | interruptlink2 May 9 12:40:53 luna kernel: [ 35.785400] iwlwifi 0000:03:00.0: 0x000001FB | data1 May 9 12:40:53 luna kernel: [ 35.785403] iwlwifi 0000:03:00.0: 0x00000009 | data2 May 9 12:40:53 luna kernel: [ 35.785407] iwlwifi 0000:03:00.0: 0x000001FB | line May 9 12:40:53 luna kernel: [ 35.785410] iwlwifi 0000:03:00.0: 0x00018265 | beacon time May 9 12:40:53 luna kernel: [ 35.785414] iwlwifi 0000:03:00.0: 0x00000D9B | tsf low May 9 12:40:53 luna kernel: [ 35.785417] iwlwifi 0000:03:00.0: 0x00000000 | tsf hi May 9 12:40:53 luna kernel: [ 35.785421] iwlwifi 0000:03:00.0: 0x00000000 | time gp1 May 9 12:40:53 luna kernel: [ 35.785424] iwlwifi 0000:03:00.0: 0x006326D9 | time gp2 May 9 12:40:53 luna kernel: [ 35.785428] iwlwifi 0000:03:00.0: 0x00000000 | time gp3 May 9 12:40:53 luna kernel: [ 35.785431] iwlwifi 0000:03:00.0: 0x00010853 | uCode version May 9 12:40:53 luna kernel: [ 35.785435] iwlwifi 0000:03:00.0: 0x00000054 | hw version May 9 12:40:53 luna kernel: [ 35.785438] iwlwifi 0000:03:00.0: 0x00488704 | board version May 9 12:40:53 luna kernel: [ 35.785442] iwlwifi 0000:03:00.0: 0x04280010 | hcmd May 9 12:40:53 luna kernel: [ 35.785445] iwlwifi 0000:03:00.0: 0x00022080 | isr0 May 9 12:40:53 luna kernel: [ 35.785448] iwlwifi 0000:03:00.0: 0x0103E000 | isr1 May 9 12:40:53 luna kernel: [ 35.785452] iwlwifi 0000:03:00.0: 0x00000002 | isr2 May 9 12:40:53 luna kernel: [ 35.785455] iwlwifi 0000:03:00.0: 0x0041FCC0 | isr3 May 9 12:40:53 luna kernel: [ 35.785459] iwlwifi 0000:03:00.0: 0x01000112 | isr4 May 9 12:40:53 luna kernel: [ 35.785462] iwlwifi 0000:03:00.0: 0x00017D3C | isr_pref May 9 12:40:53 luna kernel: [ 35.785466] iwlwifi 0000:03:00.0: 0x00000050 | wait_event May 9 12:40:53 luna kernel: [ 35.785469] iwlwifi 0000:03:00.0: 0x0000003C | l2p_control May 9 12:40:53 luna kernel: [ 35.785473] iwlwifi 0000:03:00.0: 0x0000003F | l2p_duration May 9 12:40:53 luna kernel: [ 35.785477] iwlwifi 0000:03:00.0: 0x00101040 | l2p_mhvalid May 9 12:40:53 luna kernel: [ 35.785480] iwlwifi 0000:03:00.0: 0x00000005 | l2p_addr_match May 9 12:40:53 luna kernel: [ 35.785483] iwlwifi 0000:03:00.0: 0x02121704 | lmpm_pmg_sel May 9 12:40:53 luna kernel: [ 35.785487] iwlwifi 0000:03:00.0: 0x00005868 | timestamp May 9 12:40:53 luna kernel: [ 35.785491] iwlwifi 0000:03:00.0: 0x00000100 | flow_handler May 9 12:40:53 luna kernel: [ 35.785545] iwlwifi 0000:03:00.0: Start IWL Event Log Dump: display last 20 entries May 9 12:40:53 luna kernel: [ 35.785565] iwlwifi 0000:03:00.0: EVT_LOGT:0006494688:0x00000005:0484 May 9 12:40:53 luna kernel: [ 35.785578] iwlwifi 0000:03:00.0: EVT_LOGT:0006494692:0x00000006:0484 May 9 12:40:53 luna kernel: [ 35.785590] iwlwifi 0000:03:00.0: EVT_LOGT:0006494697:0x00000007:0484 May 9 12:40:53 luna kernel: [ 35.785603] iwlwifi 0000:03:00.0: EVT_LOGT:0006494701:0x00000008:0484 May 9 12:40:53 luna kernel: [ 35.785615] iwlwifi 0000:03:00.0: EVT_LOGT:0006494706:0x0000000d:0484 May 9 12:40:53 luna kernel: [ 35.785627] iwlwifi 0000:03:00.0: EVT_LOGT:0006494711:0x0000000e:0484 May 9 12:40:53 luna kernel: [ 35.785640] iwlwifi 0000:03:00.0: EVT_LOGT:0006494715:0x0000000f:0484 May 9 12:40:53 luna kernel: [ 35.785652] iwlwifi 0000:03:00.0: EVT_LOGT:0006494719:0x00000010:0484 May 9 12:40:53 luna kernel: [ 35.785665] iwlwifi 0000:03:00.0: EVT_LOGT:0006494725:0x00000015:0484 May 9 12:40:53 luna kernel: [ 35.785677] iwlwifi 0000:03:00.0: EVT_LOGT:0006494729:0x00000016:0484 May 9 12:40:53 luna kernel: [ 35.785690] iwlwifi 0000:03:00.0: EVT_LOGT:0006494733:0x00000017:0484 May 9 12:40:53 luna kernel: [ 35.785702] iwlwifi 0000:03:00.0: EVT_LOGT:0006494738:0x00000018:0484 May 9 12:40:53 luna kernel: [ 35.785714] iwlwifi 0000:03:00.0: EVT_LOGT:0006494742:0x00000019:0484 May 9 12:40:53 luna kernel: [ 35.785727] iwlwifi 0000:03:00.0: EVT_LOGT:0006494749:0x00000000:0651 May 9 12:40:53 luna kernel: [ 35.785739] iwlwifi 0000:03:00.0: EVT_LOGT:0006497656:0x04250018:0401 May 9 12:40:53 luna kernel: [ 35.785752] iwlwifi 0000:03:00.0: EVT_LOGT:0006497728:0x0426004e:0401 May 9 12:40:53 luna kernel: [ 35.785764] iwlwifi 0000:03:00.0: EVT_LOGT:0006497993:0x04270048:0401 May 9 12:40:53 luna kernel: [ 35.785777] iwlwifi 0000:03:00.0: EVT_LOGT:0006498003:0x04280010:0401 May 9 12:40:53 luna kernel: [ 35.785789] iwlwifi 0000:03:00.0: EVT_LOGT:0006498005:0x0000000d:0451 May 9 12:40:53 luna kernel: [ 35.785802] iwlwifi 0000:03:00.0: EVT_LOGT:0006498014:0x00000000:0125 May 9 12:40:55 luna kernel: [ 37.784053] iwlwifi 0000:03:00.0: Error sending REPLY_RXON: time out after 2000ms. May 9 12:40:55 luna kernel: [ 37.784061] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 40 write_ptr 41 May 9 12:40:55 luna kernel: [ 37.784066] iwlwifi 0000:03:00.0: Error clearing ASSOC_MSK on BSS (-110) May 9 12:40:57 luna wpa_supplicant[1409]: wlan0: SME: Authentication request to the driver failed May 9 12:40:57 luna kernel: [ 39.784053] iwlwifi 0000:03:00.0: Error sending REPLY_ADD_STA: time out after 2000ms. May 9 12:40:57 luna kernel: [ 39.784060] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 40 write_ptr 42 May 9 12:40:57 luna kernel: [ 39.784065] iwlwifi 0000:03:00.0: Adding station XX:XX:XX:XX:XX:XX failed. May 9 12:40:57 luna kernel: [ 39.784070] iwlwifi 0000:03:00.0: Unable to add station XX:XX:XX:XX:XX:XX (-110) May 9 12:40:57 luna kernel: [ 39.784078] wlan0: failed to insert STA entry for the AP (error -110) May 9 12:40:57 luna kernel: [ 39.785397] ieee80211 phy0: Hardware restart was requested May 9 12:40:57 luna kernel: [ 39.785455] iwlwifi 0000:03:00.0: L1 Disabled; Enabling L0S May 9 12:40:57 luna NetworkManager[1337]: <info> (wlan0): supplicant interface state: scanning -> disconnected This issue is not present on kernel: 3.5.0-25.39 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1176812 Title: Regression caused by commit df88129 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1176812/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs