Ubuntu

Wifi is not working continuously on 12.04

Asked by Iqbal

Hi,

I have HP Probook 4431s (32 bit) with 12.04. Wireless card is of intel.
Kernel installed: Kernel Linux 3.2.0-41-generic-pae

Following modules are installed.

linux-backports-modules-cw-3.3-precise-generic-pae (Ver 3.2.0.41.49)
linux-backports-modules-cw-3.6-3.2.0-39-generic-pae (Ver 3.2.0-39.26)
linux-backports-modules-cw-3.6-3.2.0-41-generic-pae (Ver 3.2.0-41.28)

Problem:

Wifi connects but disconnects again.

How to make wifi connection stable?

Question information

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Revision history for this message
Mark Rijckenberg (markrijckenberg) said : 		#1

Hi,

Please first connect your wired network adapter to the wireless router using an ethernet cable (also known as a LAN cable).

In order to gather essential troubleshooting information about your wireless card, please follow this procedure:

Step 1:

If you are using the Gnome interface, open the Terminal console via "Applications->Accessories->Terminal"

If you are using the Unity interface, the easiest way to open the Terminal is to use the 'search' function on the dash. Or you can click on the 'More Apps' button, click on the 'See more results' by the installed section, and find it in that list of applications. A third way, available after you click on the 'More Apps' button, is to go to the search bar, and see that the far right end of it says 'All Applications'. You then click on that, and you'll see the full list. Then you can go to Accessories > Terminal after that.

The methods in Unity are:
Press Control-ALT-T key combination.
Dash > Search for Terminal
Dash > More Apps > 'See More Results' > Terminal
Dash > More Apps > Accessories > Terminal

Step 2: Please copy-paste the following command from https://help.ubuntu.com/community/WirelessTroubleshootingProcedure in Firefox into the Linux Terminal. Do NOT copy-paste from the Email message into the Terminal, as that will only copy PART of the command. The command STARTS with the word sudo and ENDS with the word lsmod. So please copy-paste the ENTIRE command below from Firefox into a Terminal, press <enter>, then enter password when sudo asks for password, then press enter again.

Tip: If you have a wheel mouse or 3 button mouse you do not need to type commands into the Terminal. Highlight the command written on the page. Move your cursor anywhere in the Terminal and press the wheel or middle button. Automatic Copy and paste! No spelling mistakes! No Typos! No other errors!

sudo apt-get update; sudo apt-get install hwinfo grep rfkill; sudo lshw -C network; rfkill list; sudo iwlist scan | egrep -i 'chan|ssid'; cat /etc/network/interfaces; cat /etc/lsb-release; lspci -nn; lsusb; sudo lshw -short; uname -a; dmesg | egrep '02:00|80211|acx|at76|ath|b43|bcm|brcm|CX|eth|ipw|ireless|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|ound|p54|prism|rror|rtl|rt2|rt3|rt5|rt6|rt7|usb|witch|wl';sudo dmidecode|egrep 'anufact|roduct|erial|elease'; iwconfig; cat /etc/modprobe.d/* | egrep '80211|acx|at76|ath|b43|bcm|brcm|CX|eth|ipw|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|p54|prism|rtl|rt2|rt3|rt6|rt7|wmi|witch|wl'; cat /var/lib/NetworkManager/NetworkManager.state; sudo hwinfo --netcard ; ps -aux|egrep 'wpa|icd|etwork'; netstat -rn ; cat /etc/resolv.conf; sudo lsmod

Step 3: Please post results (copy/paste terminal output) on this thread. The troubleshooters here need to see the full Terminal output from running the above command.

Regards,

Mark

Revision history for this message
Iqbal (naqvi-iqbal2001) said : 		#2

Hi,

Following is the output.

000fc
[ 466.755412] iwlwifi 0000:25:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
[ 466.755428] iwlwifi 0000:25:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
[ 466.755443] iwlwifi 0000:25:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
[ 466.755459] iwlwifi 0000:25:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
[ 466.755522] iwlwifi 0000:25:00.0: Start IWL Event Log Dump: nothing in log
[ 466.755843] ieee80211 phy0: Hardware restart was requested
[ 466.755888] iwlwifi 0000:25:00.0: L1 Disabled; Enabling L0S
[ 466.762542] iwlwifi 0000:25:00.0: Radio type=0x1-0x2-0x0
[ 864.161610] iwlwifi 0000:25:00.0: Tx aggregation enabled on ra = 80:a1:d7:bb:e5:7c tid = 0
[ 864.173136] iwlwifi 0000:25:00.0: Microcode SW error detected. Restarting 0x2000000.
[ 864.173139] iwlwifi 0000:25:00.0: Loaded firmware version: 18.168.6.1
[ 864.173242] iwlwifi 0000:25:00.0: Start IWL Error Log Dump:
[ 864.173245] iwlwifi 0000:25:00.0: Status: 0x000512E4, count: 6
[ 864.173248] iwlwifi 0000:25:00.0: 0x00000EDC | ADVANCED_SYSASSERT
[ 864.173251] iwlwifi 0000:25:00.0: 0x000233B0 | uPc
[ 864.173252] iwlwifi 0000:25:00.0: 0x00023360 | branchlink1
[ 864.173255] iwlwifi 0000:25:00.0: 0x00023360 | branchlink2
[ 864.173257] iwlwifi 0000:25:00.0: 0x0000DBEA | interruptlink1
[ 864.173259] iwlwifi 0000:25:00.0: 0x00000000 | interruptlink2
[ 864.173261] iwlwifi 0000:25:00.0: 0x0A080101 | data1
[ 864.173263] iwlwifi 0000:25:00.0: 0xEB260200 | data2
[ 864.173265] iwlwifi 0000:25:00.0: 0x00000AF4 | line
[ 864.173267] iwlwifi 0000:25:00.0: 0xCA404ACC | beacon time
[ 864.173269] iwlwifi 0000:25:00.0: 0xEB808534 | tsf low
[ 864.173271] iwlwifi 0000:25:00.0: 0x00000004 | tsf hi
[ 864.173273] iwlwifi 0000:25:00.0: 0x00000000 | time gp1
[ 864.173275] iwlwifi 0000:25:00.0: 0x17B1B26E | time gp2
[ 864.173277] iwlwifi 0000:25:00.0: 0x00000000 | time gp3
[ 864.173279] iwlwifi 0000:25:00.0: 0x754312A8 | uCode version
[ 864.173281] iwlwifi 0000:25:00.0: 0x000000B0 | hw version
[ 864.173283] iwlwifi 0000:25:00.0: 0x00480303 | board version
[ 864.173285] iwlwifi 0000:25:00.0: 0xEB260200 | hcmd
[ 864.173287] iwlwifi 0000:25:00.0: CSR values:
[ 864.173289] iwlwifi 0000:25:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
[ 864.173296] iwlwifi 0000:25:00.0: CSR_HW_IF_CONFIG_REG: 0X00480303
[ 864.173302] iwlwifi 0000:25:00.0: CSR_INT_COALESCING: 0X0000ff40
[ 864.173308] iwlwifi 0000:25:00.0: CSR_INT: 0X00000000
[ 864.173314] iwlwifi 0000:25:00.0: CSR_INT_MASK: 0X00000000
[ 864.173320] iwlwifi 0000:25:00.0: CSR_FH_INT_STATUS: 0X00000000
[ 864.173326] iwlwifi 0000:25:00.0: CSR_GPIO_IN: 0X00000030
[ 864.173332] iwlwifi 0000:25:00.0: CSR_RESET: 0X00000000
[ 864.173338] iwlwifi 0000:25:00.0: CSR_GP_CNTRL: 0X080403c5
[ 864.173344] iwlwifi 0000:25:00.0: CSR_HW_REV: 0X000000b0
[ 864.173350] iwlwifi 0000:25:00.0: CSR_EEPROM_REG: 0X4d1f0ffd
[ 864.173356] iwlwifi 0000:25:00.0: CSR_EEPROM_GP: 0X90000801
[ 864.173362] iwlwifi 0000:25:00.0: CSR_OTP_GP_REG: 0X00030001
[ 864.173368] iwlwifi 0000:25:00.0: CSR_GIO_REG: 0X00080044
[ 864.173374] iwlwifi 0000:25:00.0: CSR_GP_UCODE_REG: 0X000051d8
[ 864.173380] iwlwifi 0000:25:00.0: CSR_GP_DRIVER_REG: 0X00000000
[ 864.173386] iwlwifi 0000:25:00.0: CSR_UCODE_DRV_GP1: 0X00000000
[ 864.173392] iwlwifi 0000:25:00.0: CSR_UCODE_DRV_GP2: 0X00000000
[ 864.173398] iwlwifi 0000:25:00.0: CSR_LED_REG: 0X00000078
[ 864.173404] iwlwifi 0000:25:00.0: CSR_DRAM_INT_TBL_REG: 0X8803020e
[ 864.173409] iwlwifi 0000:25:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
[ 864.173415] iwlwifi 0000:25:00.0: CSR_ANA_PLL_CFG: 0X00000000
[ 864.173421] iwlwifi 0000:25:00.0: CSR_HW_REV_WA_REG: 0X0001001a
[ 864.173427] iwlwifi 0000:25:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0000
[ 864.173430] iwlwifi 0000:25:00.0: FH register values:
[ 864.173446] iwlwifi 0000:25:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X0301bb00
[ 864.173463] iwlwifi 0000:25:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X003000d0
[ 864.173480] iwlwifi 0000:25:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000000
[ 864.173496] iwlwifi 0000:25:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80819104
[ 864.173513] iwlwifi 0000:25:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
[ 864.173530] iwlwifi 0000:25:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
[ 864.173546] iwlwifi 0000:25:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
[ 864.173563] iwlwifi 0000:25:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
[ 864.173579] iwlwifi 0000:25:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
[ 864.173643] iwlwifi 0000:25:00.0: Start IWL Event Log Dump: nothing in log
[ 864.174010] ieee80211 phy0: Hardware restart was requested
[ 864.174057] iwlwifi 0000:25:00.0: L1 Disabled; Enabling L0S
[ 864.180709] iwlwifi 0000:25:00.0: Radio type=0x1-0x2-0x0
[ 1146.025283] iwlwifi 0000:25:00.0: Tx aggregation enabled on ra = 80:a1:d7:bb:e5:7c tid = 0
[ 1146.218498] iwlwifi 0000:25:00.0: Microcode SW error detected. Restarting 0x82000000.
[ 1146.218509] iwlwifi 0000:25:00.0: Loaded firmware version: 18.168.6.1
[ 1146.218608] iwlwifi 0000:25:00.0: Start IWL Error Log Dump:
[ 1146.218614] iwlwifi 0000:25:00.0: Status: 0x000512E4, count: 6
[ 1146.218621] iwlwifi 0000:25:00.0: 0x00000EDC | ADVANCED_SYSASSERT
[ 1146.218627] iwlwifi 0000:25:00.0: 0x000233B0 | uPc
[ 1146.218631] iwlwifi 0000:25:00.0: 0x00023360 | branchlink1
[ 1146.218636] iwlwifi 0000:25:00.0: 0x00023360 | branchlink2
[ 1146.218641] iwlwifi 0000:25:00.0: 0x0000DBEA | interruptlink1
[ 1146.218646] iwlwifi 0000:25:00.0: 0x00000000 | interruptlink2
[ 1146.218651] iwlwifi 0000:25:00.0: 0x1196BA76 | data1
[ 1146.218655] iwlwifi 0000:25:00.0: 0xC96FBA76 | data2
[ 1146.218660] iwlwifi 0000:25:00.0: 0x00000AF4 | line
[ 1146.218665] iwlwifi 0000:25:00.0: 0xB0816CDE | beacon time
[ 1146.218670] iwlwifi 0000:25:00.0: 0xFC51A322 | tsf low
[ 1146.218675] iwlwifi 0000:25:00.0: 0x00000004 | tsf hi
[ 1146.218679] iwlwifi 0000:25:00.0: 0x00000000 | time gp1
[ 1146.218684] iwlwifi 0000:25:00.0: 0x10D0B6AD | time gp2
[ 1146.218689] iwlwifi 0000:25:00.0: 0x00000000 | time gp3
[ 1146.218693] iwlwifi 0000:25:00.0: 0x754312A8 | uCode version
[ 1146.218698] iwlwifi 0000:25:00.0: 0x000000B0 | hw version
[ 1146.218703] iwlwifi 0000:25:00.0: 0x00480303 | board version
[ 1146.218708] iwlwifi 0000:25:00.0: 0xC96FBA76 | hcmd
[ 1146.218713] iwlwifi 0000:25:00.0: CSR values:
[ 1146.218717] iwlwifi 0000:25:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
[ 1146.218728] iwlwifi 0000:25:00.0: CSR_HW_IF_CONFIG_REG: 0X00480303
[ 1146.218738] iwlwifi 0000:25:00.0: CSR_INT_COALESCING: 0X0000ff40
[ 1146.218747] iwlwifi 0000:25:00.0: CSR_INT: 0X00000000
[ 1146.218756] iwlwifi 0000:25:00.0: CSR_INT_MASK: 0X00000000
[ 1146.218765] iwlwifi 0000:25:00.0: CSR_FH_INT_STATUS: 0X00000000
[ 1146.218775] iwlwifi 0000:25:00.0: CSR_GPIO_IN: 0X00000030
[ 1146.218784] iwlwifi 0000:25:00.0: CSR_RESET: 0X00000000
[ 1146.218793] iwlwifi 0000:25:00.0: CSR_GP_CNTRL: 0X080403c5
[ 1146.218803] iwlwifi 0000:25:00.0: CSR_HW_REV: 0X000000b0
[ 1146.218812] iwlwifi 0000:25:00.0: CSR_EEPROM_REG: 0X4d1f0ffd
[ 1146.218821] iwlwifi 0000:25:00.0: CSR_EEPROM_GP: 0X90000801
[ 1146.218830] iwlwifi 0000:25:00.0: CSR_OTP_GP_REG: 0X00030001
[ 1146.218839] iwlwifi 0000:25:00.0: CSR_GIO_REG: 0X00080044
[ 1146.218848] iwlwifi 0000:25:00.0: CSR_GP_UCODE_REG: 0X00003ec0
[ 1146.218858] iwlwifi 0000:25:00.0: CSR_GP_DRIVER_REG: 0X00000000
[ 1146.218867] iwlwifi 0000:25:00.0: CSR_UCODE_DRV_GP1: 0X00000000
[ 1146.218876] iwlwifi 0000:25:00.0: CSR_UCODE_DRV_GP2: 0X00000000
[ 1146.218885] iwlwifi 0000:25:00.0: CSR_LED_REG: 0X00000078
[ 1146.218895] iwlwifi 0000:25:00.0: CSR_DRAM_INT_TBL_REG: 0X8803020e
[ 1146.218904] iwlwifi 0000:25:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
[ 1146.218913] iwlwifi 0000:25:00.0: CSR_ANA_PLL_CFG: 0X00000000
[ 1146.218922] iwlwifi 0000:25:00.0: CSR_HW_REV_WA_REG: 0X0001001a
[ 1146.218931] iwlwifi 0000:25:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0000
[ 1146.218937] iwlwifi 0000:25:00.0: FH register values:
[ 1146.218957] iwlwifi 0000:25:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X0301bb00
[ 1146.218978] iwlwifi 0000:25:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X003000d0
[ 1146.218998] iwlwifi 0000:25:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000058
[ 1146.219018] iwlwifi 0000:25:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80819104
[ 1146.219038] iwlwifi 0000:25:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
[ 1146.219058] iwlwifi 0000:25:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
[ 1146.219079] iwlwifi 0000:25:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
[ 1146.219099] iwlwifi 0000:25:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
[ 1146.219119] iwlwifi 0000:25:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
[ 1146.219188] iwlwifi 0000:25:00.0: Start IWL Event Log Dump: nothing in log
[ 1146.219580] ieee80211 phy0: Hardware restart was requested
[ 1146.219643] iwlwifi 0000:25:00.0: L1 Disabled; Enabling L0S
[ 1146.226311] iwlwifi 0000:25:00.0: Radio type=0x1-0x2-0x0
[ 1168.303969] iwlwifi 0000:25:00.0: Tx aggregation enabled on ra = 80:a1:d7:bb:e5:7c tid = 0
[ 1168.531529] iwlwifi 0000:25:00.0: Microcode SW error detected. Restarting 0x82000000.
[ 1168.531541] iwlwifi 0000:25:00.0: Loaded firmware version: 18.168.6.1
[ 1168.531649] iwlwifi 0000:25:00.0: Start IWL Error Log Dump:
[ 1168.531655] iwlwifi 0000:25:00.0: Status: 0x000512E4, count: 6
[ 1168.531662] iwlwifi 0000:25:00.0: 0x00000EDC | ADVANCED_SYSASSERT
[ 1168.531668] iwlwifi 0000:25:00.0: 0x000233B0 | uPc
[ 1168.531673] iwlwifi 0000:25:00.0: 0x00023360 | branchlink1
[ 1168.531677] iwlwifi 0000:25:00.0: 0x00023360 | branchlink2
[ 1168.531682] iwlwifi 0000:25:00.0: 0x0000DBEA | interruptlink1
[ 1168.531687] iwlwifi 0000:25:00.0: 0x00000000 | interruptlink2
[ 1168.531692] iwlwifi 0000:25:00.0: 0x15980F77 | data1
[ 1168.531697] iwlwifi 0000:25:00.0: 0xD5650E77 | data2
[ 1168.531702] iwlwifi 0000:25:00.0: 0x00000AF4 | line
[ 1168.531706] iwlwifi 0000:25:00.0: 0x36417750 | beacon time
[ 1168.531711] iwlwifi 0000:25:00.0: 0xFDA638B0 | tsf low
[ 1168.531716] iwlwifi 0000:25:00.0: 0x00000004 | tsf hi
[ 1168.531720] iwlwifi 0000:25:00.0: 0x00000000 | time gp1
[ 1168.531726] iwlwifi 0000:25:00.0: 0x015446FA | time gp2
[ 1168.531730] iwlwifi 0000:25:00.0: 0x00000000 | time gp3
[ 1168.531735] iwlwifi 0000:25:00.0: 0x754312A8 | uCode version
[ 1168.531740] iwlwifi 0000:25:00.0: 0x000000B0 | hw version
[ 1168.531745] iwlwifi 0000:25:00.0: 0x00480303 | board version
[ 1168.531750] iwlwifi 0000:25:00.0: 0xD5650E77 | hcmd
[ 1168.531754] iwlwifi 0000:25:00.0: CSR values:
[ 1168.531759] iwlwifi 0000:25:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
[ 1168.531770] iwlwifi 0000:25:00.0: CSR_HW_IF_CONFIG_REG: 0X00480303
[ 1168.531780] iwlwifi 0000:25:00.0: CSR_INT_COALESCING: 0X0000ff40
[ 1168.531789] iwlwifi 0000:25:00.0: CSR_INT: 0X00000000
[ 1168.531798] iwlwifi 0000:25:00.0: CSR_INT_MASK: 0X00000000
[ 1168.531808] iwlwifi 0000:25:00.0: CSR_FH_INT_STATUS: 0X00000000
[ 1168.531816] iwlwifi 0000:25:00.0: CSR_GPIO_IN: 0X00000030
[ 1168.531826] iwlwifi 0000:25:00.0: CSR_RESET: 0X00000000
[ 1168.531835] iwlwifi 0000:25:00.0: CSR_GP_CNTRL: 0X080403c5
[ 1168.531844] iwlwifi 0000:25:00.0: CSR_HW_REV: 0X000000b0
[ 1168.531854] iwlwifi 0000:25:00.0: CSR_EEPROM_REG: 0X4d1f0ffd
[ 1168.531864] iwlwifi 0000:25:00.0: CSR_EEPROM_GP: 0X90000801
[ 1168.531873] iwlwifi 0000:25:00.0: CSR_OTP_GP_REG: 0X00030001
[ 1168.531882] iwlwifi 0000:25:00.0: CSR_GIO_REG: 0X00080044
[ 1168.531891] iwlwifi 0000:25:00.0: CSR_GP_UCODE_REG: 0X00001031
[ 1168.531900] iwlwifi 0000:25:00.0: CSR_GP_DRIVER_REG: 0X00000000
[ 1168.531909] iwlwifi 0000:25:00.0: CSR_UCODE_DRV_GP1: 0X00000000
[ 1168.531918] iwlwifi 0000:25:00.0: CSR_UCODE_DRV_GP2: 0X00000000
[ 1168.531928] iwlwifi 0000:25:00.0: CSR_LED_REG: 0X00000078
[ 1168.531937] iwlwifi 0000:25:00.0: CSR_DRAM_INT_TBL_REG: 0X8803020e
[ 1168.531946] iwlwifi 0000:25:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
[ 1168.531955] iwlwifi 0000:25:00.0: CSR_ANA_PLL_CFG: 0X00000000
[ 1168.531964] iwlwifi 0000:25:00.0: CSR_HW_REV_WA_REG: 0X0001001a
[ 1168.531973] iwlwifi 0000:25:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0000
[ 1168.531979] iwlwifi 0000:25:00.0: FH register values:
[ 1168.531999] iwlwifi 0000:25:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X0301bb00
[ 1168.532019] iwlwifi 0000:25:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X003000d0
[ 1168.532040] iwlwifi 0000:25:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000018
[ 1168.532060] iwlwifi 0000:25:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80819104
[ 1168.532081] iwlwifi 0000:25:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
[ 1168.532101] iwlwifi 0000:25:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
[ 1168.532122] iwlwifi 0000:25:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
[ 1168.532142] iwlwifi 0000:25:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
[ 1168.532163] iwlwifi 0000:25:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
[ 1168.532231] iwlwifi 0000:25:00.0: Start IWL Event Log Dump: nothing in log
[ 1168.532631] ieee80211 phy0: Hardware restart was requested
[ 1168.532697] iwlwifi 0000:25:00.0: L1 Disabled; Enabling L0S
[ 1168.539427] iwlwifi 0000:25:00.0: Radio type=0x1-0x2-0x0
[ 1199.436056] iwlwifi 0000:25:00.0: Tx aggregation enabled on ra = 80:a1:d7:bb:e5:7c tid = 0
[ 1204.154364] iwlwifi 0000:25:00.0: Microcode SW error detected. Restarting 0x2000000.
[ 1204.154370] iwlwifi 0000:25:00.0: Loaded firmware version: 18.168.6.1
[ 1204.154463] iwlwifi 0000:25:00.0: Start IWL Error Log Dump:
[ 1204.154465] iwlwifi 0000:25:00.0: Status: 0x000512E4, count: 6
[ 1204.154469] iwlwifi 0000:25:00.0: 0x00000EDC | ADVANCED_SYSASSERT
[ 1204.154471] iwlwifi 0000:25:00.0: 0x000233B0 | uPc
[ 1204.154474] iwlwifi 0000:25:00.0: 0x00023360 | branchlink1
[ 1204.154476] iwlwifi 0000:25:00.0: 0x00023360 | branchlink2
[ 1204.154478] iwlwifi 0000:25:00.0: 0x0000DBEA | interruptlink1
[ 1204.154481] iwlwifi 0000:25:00.0: 0x00000000 | interruptlink2
[ 1204.154483] iwlwifi 0000:25:00.0: 0x0A080101 | data1
[ 1204.154485] iwlwifi 0000:25:00.0: 0x09730300 | data2
[ 1204.154488] iwlwifi 0000:25:00.0: 0x00000AF4 | line
[ 1204.154490] iwlwifi 0000:25:00.0: 0x56C1789F | beacon time
[ 1204.154492] iwlwifi 0000:25:00.0: 0xFFC5F761 | tsf low
[ 1204.154495] iwlwifi 0000:25:00.0: 0x00000004 | tsf hi
[ 1204.154497] iwlwifi 0000:25:00.0: 0x00000000 | time gp1
[ 1204.154499] iwlwifi 0000:25:00.0: 0x021F7028 | time gp2
[ 1204.154502] iwlwifi 0000:25:00.0: 0x00000000 | time gp3
[ 1204.154504] iwlwifi 0000:25:00.0: 0x754312A8 | uCode version
[ 1204.154506] iwlwifi 0000:25:00.0: 0x000000B0 | hw version
[ 1204.154509] iwlwifi 0000:25:00.0: 0x00480303 | board version
[ 1204.154511] iwlwifi 0000:25:00.0: 0x09730300 | hcmd
[ 1204.154513] iwlwifi 0000:25:00.0: CSR values:
[ 1204.154515] iwlwifi 0000:25:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
[ 1204.154523] iwlwifi 0000:25:00.0: CSR_HW_IF_CONFIG_REG: 0X00480303
[ 1204.154529] iwlwifi 0000:25:00.0: CSR_INT_COALESCING: 0X0000ff40
[ 1204.154535] iwlwifi 0000:25:00.0: CSR_INT: 0X00000000
[ 1204.154542] iwlwifi 0000:25:00.0: CSR_INT_MASK: 0X00000000
[ 1204.154548] iwlwifi 0000:25:00.0: CSR_FH_INT_STATUS: 0X00000000
[ 1204.154554] iwlwifi 0000:25:00.0: CSR_GPIO_IN: 0X00000030
[ 1204.154560] iwlwifi 0000:25:00.0: CSR_RESET: 0X00000000
[ 1204.154567] iwlwifi 0000:25:00.0: CSR_GP_CNTRL: 0X080403c5
[ 1204.154573] iwlwifi 0000:25:00.0: CSR_HW_REV: 0X000000b0
[ 1204.154579] iwlwifi 0000:25:00.0: CSR_EEPROM_REG: 0X4d1f0ffd
[ 1204.154586] iwlwifi 0000:25:00.0: CSR_EEPROM_GP: 0X90000801
[ 1204.154591] iwlwifi 0000:25:00.0: CSR_OTP_GP_REG: 0X00030001
[ 1204.154598] iwlwifi 0000:25:00.0: CSR_GIO_REG: 0X00080044
[ 1204.154604] iwlwifi 0000:25:00.0: CSR_GP_UCODE_REG: 0X00000efb
[ 1204.154610] iwlwifi 0000:25:00.0: CSR_GP_DRIVER_REG: 0X00000000
[ 1204.154616] iwlwifi 0000:25:00.0: CSR_UCODE_DRV_GP1: 0X00000000
[ 1204.154622] iwlwifi 0000:25:00.0: CSR_UCODE_DRV_GP2: 0X00000000
[ 1204.154629] iwlwifi 0000:25:00.0: CSR_LED_REG: 0X00000078
[ 1204.154635] iwlwifi 0000:25:00.0: CSR_DRAM_INT_TBL_REG: 0X8803020e
[ 1204.154641] iwlwifi 0000:25:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
[ 1204.154647] iwlwifi 0000:25:00.0: CSR_ANA_PLL_CFG: 0X00000000
[ 1204.154653] iwlwifi 0000:25:00.0: CSR_HW_REV_WA_REG: 0X0001001a
[ 1204.154660] iwlwifi 0000:25:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0000
[ 1204.154662] iwlwifi 0000:25:00.0: FH register values:
[ 1204.154679] iwlwifi 0000:25:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X0301bb00
[ 1204.154696] iwlwifi 0000:25:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X003000d0
[ 1204.154713] iwlwifi 0000:25:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000060
[ 1204.154730] iwlwifi 0000:25:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80819104
[ 1204.154747] iwlwifi 0000:25:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
[ 1204.154763] iwlwifi 0000:25:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
[ 1204.154781] iwlwifi 0000:25:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
[ 1204.154797] iwlwifi 0000:25:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
[ 1204.154814] iwlwifi 0000:25:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
[ 1204.154878] iwlwifi 0000:25:00.0: Start IWL Event Log Dump: nothing in log
[ 1204.155228] ieee80211 phy0: Hardware restart was requested
[ 1204.155275] iwlwifi 0000:25:00.0: L1 Disabled; Enabling L0S
[ 1204.161921] iwlwifi 0000:25:00.0: Radio type=0x1-0x2-0x0
[ 1284.399436] iwlwifi 0000:25:00.0: Tx aggregation enabled on ra = 80:a1:d7:bb:e5:7c tid = 0
 Release Date: 07/18/2011
  Serial services are supported (int 14h)
 Manufacturer: Hewlett-Packard
 Product Name: HP ProBook 4431s
 Serial Number: CNU21517PK
 Manufacturer: Hewlett-Packard
 Product Name: 167E
 Serial Number: PCMEF001Y2K0B6
 Manufacturer: Hewlett-Packard
 Serial Number: CNU21517PK
 Manufacturer: Intel(R) Corporation
 Serial Number: Not Specified
 Manufacturer: Not Specified
 Serial Number: Not Specified
 Manufacturer: Elpida
 Serial Number: 108C1A57
 Manufacturer: 13-42
 SBDS Serial Number: 5400
 SBDS Manufacture Date: 2012-02-27
lo no wireless extensions.

eth1 no wireless extensions.

wlan0 IEEE 802.11abgn ESSID:"FTTH"
          Mode:Managed Frequency:2.442 GHz Access Point: 80:A1:D7:BB:E5:7C
          Bit Rate=1 Mb/s Tx-Power=15 dBm
          Retry long limit:7 RTS thr:off Fragment thr:off
          Power Management:on
          Link Quality=53/70 Signal level=-57 dBm
          Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
          Tx excessive retries:84 Invalid misc:39 Missed beacon:0

install snd-rawmidi /sbin/modprobe --ignore-install snd-rawmidi $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; : ; }
# which ath5k cannot recover. To prevent this condition, stop
blacklist ath_pci
blacklist eth1394
# replaced by p54pci
blacklist prism54
# replaced by b43 and ssb.
blacklist bcm43xx
blacklist uart6850
blacklist twl4030_wdt

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=false
WimaxEnabled=true
27: PCI 2500.0: 0282 WLAN controller
  [Created at pci.318]
  UDI: /org/freedesktop/Hal/devices/pci_8086_90
  Unique ID: y9sn.hMbZFzH+u24
  Parent ID: Z7uZ.gGV9j5AMtE9
  SysFS ID: /devices/pci0000:00/0000:00:1c.3/0000:25:00.0
  SysFS BusID: 0000:25:00.0
  Hardware Class: network
  Model: "Intel WLAN controller"
  Vendor: pci 0x8086 "Intel Corporation"
  Device: pci 0x0090
  SubVendor: pci 0x8086 "Intel Corporation"
  SubDevice: pci 0x5211
  Revision: 0x34
  Driver: "iwlwifi"
  Driver Modules: "iwlwifi"
  Device File: wlan0
  Features: WLAN
  Memory Range: 0xa4700000-0xa4701fff (rw,non-prefetchable)
  IRQ: 56 (67694 events)
  HW Address: 88:53:2e:e0:e9:ee
  Link detected: yes
  WLAN channels: 1 2 3 4 5 6 7 8 9 10 11 56 60 64 149 153 157 161
  WLAN frequencies: 2.412 2.417 2.422 2.427 2.432 2.437 2.442 2.447 2.452 2.457 2.462 5.28 5.3 5.32 5.745 5.765 5.785 5.805
  WLAN encryption modes: WEP40 WEP104 TKIP CCMP
  WLAN authentication modes: open sharedkey wpa-psk wpa-eap
  Module Alias: "pci:v00008086d00000090sv00008086sd00005211bc02sc80i00"
  Driver Info #0:
    Driver Status: iwlwifi is active
    Driver Activation Cmd: "modprobe iwlwifi"
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #17 (PCI bridge)

28: PCI 2600.0: 0200 Ethernet controller
  [Created at pci.318]
  UDI: /org/freedesktop/Hal/devices/pci_10ec_8168
  Unique ID: JNkJ.AZ1BZBksGoB
  Parent ID: HnsE.kwG9eJ_O_L9
  SysFS ID: /devices/pci0000:00/0000:00:1c.5/0000:26:00.0
  SysFS BusID: 0000:26:00.0
  Hardware Class: network
  Model: "Realtek RTL8111/8168B PCI Express Gigabit Ethernet controller"
  Vendor: pci 0x10ec "Realtek Semiconductor Co., Ltd."
  Device: pci 0x8168 "RTL8111/8168B PCI Express Gigabit Ethernet controller"
  SubVendor: pci 0x103c "Hewlett-Packard Company"
  SubDevice: pci 0x167f
  Revision: 0x06
  Driver: "r8169"
  Driver Modules: "r8169"
  Device File: eth1
  I/O Ports: 0x2000-0x2fff (rw)
  Memory Range: 0xa4404000-0xa4404fff (ro,non-prefetchable)
  Memory Range: 0xa4400000-0xa4403fff (ro,non-prefetchable)
  IRQ: 53 (no events)
  HW Address: e4:11:5b:54:b3:bc
  Link detected: no
  Module Alias: "pci:v000010ECd00008168sv0000103Csd0000167Fbc02sc00i00"
  Driver Info #0:
    Driver Status: r8169 is active
    Driver Activation Cmd: "modprobe r8169"
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #18 (PCI bridge)
Warning: bad ps syntax, perhaps a bogus '-'? See http://procps.sf.net/faq.html
root 928 0.0 0.2 31200 5152 ? Ssl 19:08 0:00 NetworkManager
root 1290 0.0 0.1 5960 2052 ? Ss 19:08 0:00 /sbin/wpa_supplicant -B -P /run/sendsigs.omit.d/wpasupplicant.pid -u -s -O /var/run/wpa_supplicant
root 2346 0.0 0.0 2924 1300 ? S 19:08 0:00 /sbin/dhclient -d -4 -sf /usr/lib/NetworkManager/nm-dhcp-client.action -pf /var/run/sendsigs.omit.d/network-manager.dhclient-wlan0.pid -lf /var/lib/dhcp/dhclient-2c888c8e-f0e9-4727-901b-00ba2fc7a06e-wlan0.lease -cf /var/run/nm-dhclient-wlan0.conf wlan0
nobody 2351 0.0 0.0 5400 1156 ? S 19:08 0:00 /usr/sbin/dnsmasq --no-resolv --keep-in-foreground --no-hosts --bind-interfaces --pid-file=/var/run/sendsigs.omit.d/network-manager.dnsmasq.pid --listen-address=127.0.0.1 --conf-file=/var/run/nm-dns-dnsmasq.conf --cache-size=0 --proxy-dnssec
cso 4063 0.0 0.0 4384 812 pts/0 S+ 19:29 0:00 egrep --color=auto wpa|icd|etwork
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
0.0.0.0 192.168.1.251 0.0.0.0 UG 0 0 0 wlan0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 wlan0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.0.1
Module Size Used by
pci_stub 12550 1
vboxpci 22911 0
vboxnetadp 13328 0
vboxnetflt 27240 0
vboxdrv 252188 3 vboxpci,vboxnetadp,vboxnetflt
bnep 17830 2
rfcomm 38139 0
bluetooth 158479 10 bnep,rfcomm
parport_pc 32114 0
ppdev 12849 0
binfmt_misc 17292 1
snd_hda_codec_hdmi 31775 1
snd_hda_codec_idt 60251 1
arc4 12473 2
iwlwifi 366509 0
joydev 17393 0
hp_wmi 13652 0
sparse_keymap 13658 1 hp_wmi
snd_hda_intel 32719 3
snd_hda_codec 109562 3 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel
snd_hwdep 13276 1 snd_hda_codec
snd_pcm 80916 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_seq_midi 13132 0
uvcvideo 67203 0
videodev 86588 1 uvcvideo
snd_rawmidi 25424 1 snd_seq_midi
snd_seq_midi_event 14475 1 snd_seq_midi
snd_seq 51592 2 snd_seq_midi,snd_seq_midi_event
snd_timer 28931 2 snd_pcm,snd_seq
snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq
snd 62218 16 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
hp_accel 25728 0
lis3lv02d 19268 1 hp_accel
input_polldev 13648 1 lis3lv02d
wmi 18744 1 hp_wmi
mac_hid 13077 0
mac80211 436493 1 iwlwifi
fglrx 4323676 0
cfg80211 178877 2 iwlwifi,mac80211
psmouse 86520 0
serio_raw 13027 0
jmb38x_ms 17406 0
i915 423564 2
soundcore 14635 1 snd
memstick 15857 1 jmb38x_ms
snd_page_alloc 14108 2 snd_hda_intel,snd_pcm
drm_kms_helper 45466 1 i915
drm 197641 3 i915,drm_kms_helper
mei 36570 0
i2c_algo_bit 13199 1 i915
video 19115 1 i915
tifm_sd 17566 0
tifm_core 15040 1 tifm_sd
lp 17455 0
parport 40930 3 parport_pc,ppdev,lp
r8169 56368 0
sdhci_pci 18324 0
sdhci 28241 1 sdhci_pci

Revision history for this message
Mark Rijckenberg (markrijckenberg) said : 		#3

Your Terminal output shows the following issue:

[ 864.173136] iwlwifi 0000:25:00.0: Microcode SW error detected. Restarting 0x2000000.
[ 864.173139] iwlwifi 0000:25:00.0: Loaded firmware version: 18.168.6.1
[ 864.173242] iwlwifi 0000:25:00.0: Start IWL Error Log Dump:
[ 864.173245] iwlwifi 0000:25:00.0: Status: 0x000512E4, count: 6
[ 864.173248] iwlwifi 0000:25:00.0: 0x00000EDC | ADVANCED_SYSASSERT
[ 864.173251] iwlwifi 0000:25:00.0: 0x000233B0 | uPc
[ 864.173252] iwlwifi 0000:25:00.0: 0x00023360 | branchlink1
[ 864.173255] iwlwifi 0000:25:00.0: 0x00023360 | branchlink2
[ 864.173257] iwlwifi 0000:25:00.0: 0x0000DBEA | interruptlink1
[ 864.173259] iwlwifi 0000:25:00.0: 0x00000000 | interruptlink2

I believe your wireless driver iwlwifi is experiencing the following bug:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/944271

Please run these commands in a Terminal:

sudo su
echo 'options iwlwifi 11n_disable=1' >> /etc/modprobe.d/iwlwifi.conf

This workaround procedure is explained here:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/944271/comments/15

Then reboot and retest wireless.

Can you help with this problem?

Provide an answer of your own, or ask Iqbal for more information if necessary.

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