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Thread: Intel Centrino Wireless N 1000

  1. #1
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    Intel Centrino Wireless N 1000

    Hello, I know there have been a lot of posts about the internet not working on this forum, but none seem to fix my problem. I have just installed ubuntu 12.10 and everything runs great, except for the wireless. When I plug an ethernet cable into my machine, the internet works fine, but the wireless does not. It recognizes all the networks around, but when I try to connect to one, it keeps asking for the password, as though I did not type it in correctly. I typed in the rfkill list all command into the terminal and the wireless is not blocked. I have a HP dv6 laptop computer, just incase anyone was wondering. Any suggestions? Thanks in advance.

  2. #2
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    Re: Wireless Not Working

    Welcome to the forums!

    Good preliminary detective work, but need the actual output. Please post output from:
    Code:
    sudo lshw -C network
    Code:
    sudo lspci -vk | grep -iA13 net
    Code:
    ifconfig
    Code:
    iwconfig
    Code:
    rfkill list all
    Code:
    cat /etc/modules
    Code:
    grep blacklist /etc/modprobe.d/blacklist.conf
    Output will be lots so please enclose in CODE tags (using hash button at top of posting box) to make output easier to read (as I have).
    Newb: How far must I jump to clear the ledge halfway down?
    Guru: It's bad to jump off cliffs. Let's look at better options.
    Newb: Stop harping about "best practices" and just tell me.


  3. #3
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    Re: Wireless Not Working

    ok here are the things you asked for

    Code:
      *-network               
           description: Ethernet interface
           product: RTL8111/8168B PCI Express Gigabit Ethernet controller
           vendor: Realtek Semiconductor Co., Ltd.
           physical id: 0
           bus info: pci@0000:07:00.0
           logical name: eth0
           version: 06
           serial: 10:1f:74:0a:55:2f
           size: 100Mbit/s
           capacity: 1Gbit/s
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
           configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8168e-3_0.0.4 03/27/12 ip=192.168.1.131 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
           resources: irq:51 ioport:4000(size=256) memory:c0404000-c0404fff memory:c0400000-c0403fff
      *-network DISABLED
           description: Wireless interface
           product: Centrino Wireless-N 1000
           vendor: Intel Corporation
           physical id: 0
           bus info: pci@0000:0d:00.0
           logical name: wlan0
           version: 00
           serial: 8c:a9:82:99:72:2c
           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=39.31.5.1 build 35138 latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
           resources: irq:53 memory:c4500000-c4501fff
    second block:

    Code:
    07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)
        Subsystem: Hewlett-Packard Company Device 1657
        Flags: bus master, fast devsel, latency 0, IRQ 51
        I/O ports at 4000 [size=256]
        Memory at c0404000 (64-bit, prefetchable) [size=4K]
        Memory at c0400000 (64-bit, prefetchable) [size=16K]
        Capabilities: [40] Power Management version 3
        Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [70] Express Endpoint, MSI 01
        Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
        Capabilities: [d0] Vital Product Data
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Virtual Channel
        Capabilities: [160] Device Serial Number 01-00-00-00-68-4c-e0-00
    --
    0d:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000
        Subsystem: Intel Corporation Centrino Wireless-N 1000 BGN
        Flags: bus master, fast devsel, latency 0, IRQ 53
        Memory at c4500000 (64-bit, non-prefetchable) [size=8K]
        Capabilities: [c8] Power Management version 3
        Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [e0] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Device Serial Number 8c-a9-82-ff-ff-99-72-2c
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi
    
    13:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader (rev 01)
        Subsystem: Hewlett-Packard Company Device 1657
    third:

    Code:
    eth0      Link encap:Ethernet  HWaddr 10:1f:74:0a:55:2f  
              inet addr:192.168.1.131  Bcast:192.168.1.255  Mask:255.255.255.0
              inet6 addr: fe80::121f:74ff:fe0a:552f/64 Scope:Link
              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
              RX packets:2109 errors:0 dropped:0 overruns:0 frame:0
              TX packets:1447 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:2652668 (2.6 MB)  TX bytes:188178 (188.1 KB)
    
    lo        Link encap:Local Loopback  
              inet addr:127.0.0.1  Mask:255.0.0.0
              inet6 addr: ::1/128 Scope:Host
              UP LOOPBACK RUNNING  MTU:16436  Metric:1
              RX packets:104 errors:0 dropped:0 overruns:0 frame:0
              TX packets:104 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:0 
              RX bytes:15211 (15.2 KB)  TX bytes:15211 (15.2 KB)
    fourth:

    Code:
    eth0      no wireless extensions.
    
    lo        no wireless extensions.
    
    wlan0     IEEE 802.11bgn  ESSID:off/any  
              Mode:Managed  Access Point: Not-Associated   Tx-Power=off   
              Retry  long limit:7   RTS thr:off   Fragment thr:off
              Power Management:on
    fifth:

    Code:
    0: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: yes
    1: hp-wifi: Wireless LAN
        Soft blocked: no
        Hard blocked: yes
    2: hp-bluetooth: Bluetooth
        Soft blocked: yes
        Hard blocked: yes
    next:

    Code:
    # /etc/modules: kernel modules to load at boot time.
    #
    # This file contains the names of kernel modules that should be loaded
    # at boot time, one per line. Lines beginning with "#" are ignored.
    last:

    Code:
    lacklist evbug
    blacklist usbmouse
    blacklist usbkbd
    blacklist eepro100
    blacklist de4x5
    blacklist eth1394
    blacklist snd_intel8x0m
    blacklist snd_aw2
    blacklist i2c_i801
    blacklist prism54
    blacklist bcm43xx
    blacklist garmin_gps
    blacklist asus_acpi
    blacklist snd_pcsp
    blacklist pcspkr
    blacklist amd76x_edac
    Thanks again for taking the time to post and help me out.

  4. #4
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    Re: Intel Centrino Wireless N 1000

    Quote Originally Posted by liquidsix View Post
    Thanks again for taking the time to post and help me out.
    No problem whatsoever. Glad to be able to help.

    Your wireless appears to be hardware blocked. This can be due to:

    1. Wireless is disabled in your BIOS
    2. Some laptops have an external switch that turns all wireless off. Please check to make sure this switch is in the "on" position.
    3. Wireless card is loose or has burnt out component. This is unlikely because system recognizes your card enough to load driver, but cannot activate it.

    I suspect it's a switch because your bluetooth is also blocked, which is usually due to switch.

    Please let us know how it goes, and...
    Happy Ubuntuing!
    Newb: How far must I jump to clear the ledge halfway down?
    Guru: It's bad to jump off cliffs. Let's look at better options.
    Newb: Stop harping about "best practices" and just tell me.


  5. #5
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    Re: Intel Centrino Wireless N 1000

    I'm sorry. I when I was doing all those commands I had turned my wireless off via hardswitch, so the computer wouldn't keep trying to connect to the wifi and (repeatedly) ask me for a password. And with the third option not likely. It must be the BIOS. Do you know where I can get some more information on this, or would this option also be eliminated because I had the hardswitch off?

  6. #6
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    Re: Intel Centrino Wireless N 1000

    Quote Originally Posted by liquidsix View Post
    ...when I was doing all those commands I had turned my wireless off via hardswitch...
    If the commands were run with hardswitch knowingly off, then they won't capture the state of either your hardware or software and the commands won't tell us anything. Would suggest that you repost same output with hardswitch on.
    Newb: How far must I jump to clear the ledge halfway down?
    Guru: It's bad to jump off cliffs. Let's look at better options.
    Newb: Stop harping about "best practices" and just tell me.


  7. #7
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    Re: Intel Centrino Wireless N 1000

    ok, updated information:

    first:

    Code:
      *-network               
           description: Ethernet interface
           product: RTL8111/8168B PCI Express Gigabit Ethernet controller
           vendor: Realtek Semiconductor Co., Ltd.
           physical id: 0
           bus info: pci@0000:07:00.0
           logical name: eth0
           version: 06
           serial: 10:1f:74:0a:55:2f
           size: 100Mbit/s
           capacity: 1Gbit/s
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
           configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8168e-3_0.0.4 03/27/12 ip=192.168.1.131 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
           resources: irq:51 ioport:4000(size=256) memory:c0404000-c0404fff memory:c0400000-c0403fff
      *-network
           description: Wireless interface
           product: Centrino Wireless-N 1000
           vendor: Intel Corporation
           physical id: 0
           bus info: pci@0000:0d:00.0
           logical name: wlan0
           version: 00
           serial: 8c:a9:82:99:72:2c
           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=39.31.5.1 build 35138 latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
           resources: irq:53 memory:c4500000-c4501fff
    next:

    Code:
    07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)
        Subsystem: Hewlett-Packard Company Device 1657
        Flags: bus master, fast devsel, latency 0, IRQ 51
        I/O ports at 4000 [size=256]
        Memory at c0404000 (64-bit, prefetchable) [size=4K]
        Memory at c0400000 (64-bit, prefetchable) [size=16K]
        Capabilities: [40] Power Management version 3
        Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [70] Express Endpoint, MSI 01
        Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
        Capabilities: [d0] Vital Product Data
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Virtual Channel
        Capabilities: [160] Device Serial Number 01-00-00-00-68-4c-e0-00
    --
    0d:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000
        Subsystem: Intel Corporation Centrino Wireless-N 1000 BGN
        Flags: bus master, fast devsel, latency 0, IRQ 53
        Memory at c4500000 (64-bit, non-prefetchable) [size=8K]
        Capabilities: [c8] Power Management version 3
        Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [e0] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Device Serial Number 8c-a9-82-ff-ff-99-72-2c
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi
    
    13:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader (rev 01)
        Subsystem: Hewlett-Packard Company Device 1657
    next:

    Code:
    eth0      Link encap:Ethernet  HWaddr 10:1f:74:0a:55:2f  
              inet addr:192.168.1.131  Bcast:192.168.1.255  Mask:255.255.255.0
              inet6 addr: fe80::121f:74ff:fe0a:552f/64 Scope:Link
              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
              RX packets:2340 errors:0 dropped:0 overruns:0 frame:0
              TX packets:1607 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:3019486 (3.0 MB)  TX bytes:191911 (191.9 KB)
    
    lo        Link encap:Local Loopback  
              inet addr:127.0.0.1  Mask:255.0.0.0
              inet6 addr: ::1/128 Scope:Host
              UP LOOPBACK RUNNING  MTU:16436  Metric:1
              RX packets:100 errors:0 dropped:0 overruns:0 frame:0
              TX packets:100 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:0 
              RX bytes:14621 (14.6 KB)  TX bytes:14621 (14.6 KB)
    
    wlan0     Link encap:Ethernet  HWaddr 8c:a9:82:99:72:2c  
              UP BROADCAST MULTICAST  MTU:1500  Metric:1
              RX packets:0 errors:0 dropped:0 overruns:0 frame:0
              TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
    next:

    Code:
    eth0      no wireless extensions.
    
    lo        no wireless extensions.
    
    wlan0     IEEE 802.11bgn  ESSID:off/any  
              Mode:Managed  Access Point: Not-Associated   Tx-Power=14 dBm   
              Retry  long limit:7   RTS thr:off   Fragment thr:off
              Power Management:on
    next:

    Code:
    0: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
    1: hp-wifi: Wireless LAN
        Soft blocked: no
        Hard blocked: no
    2: hp-bluetooth: Bluetooth
        Soft blocked: yes
        Hard blocked: no
    next:

    Code:
    # /etc/modules: kernel modules to load at boot time.
    #
    # This file contains the names of kernel modules that should be loaded
    # at boot time, one per line. Lines beginning with "#" are ignored.
    and last:

    Code:
    blacklist evbug
    blacklist usbmouse
    blacklist usbkbd
    blacklist eepro100
    blacklist de4x5
    blacklist eth1394
    blacklist snd_intel8x0m
    blacklist snd_aw2
    blacklist i2c_i801
    blacklist prism54
    blacklist bcm43xx
    blacklist garmin_gps
    blacklist asus_acpi
    blacklist snd_pcsp
    blacklist pcspkr
    blacklist amd76x_edac

  8. #8
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    Re: Intel Centrino Wireless N 1000

    There doesn't appear to be anything wrong with your setup. Driver is loaded and is appropriate for Centrino N 1000. The fact that it shows up in ifconfig/iwconfig means that it is ready and waiting for connection.

    1 You mentioned:
    It recognizes all the networks around...
    Please explain what you mean by this. Do you have multiple networks?
    2. Was it working before and suddenly stopped working? Broken by an update? or,
    3. Is this a fresh install?
    4. Have you tried power-cycling your router?
    5. What type of encryption is your router set to and is this what you have set Network Manager to?
    6. Are your encryption keys identical?

    This checklist would seem to be the next items to review.
    Newb: How far must I jump to clear the ledge halfway down?
    Guru: It's bad to jump off cliffs. Let's look at better options.
    Newb: Stop harping about "best practices" and just tell me.


  9. #9
    Join Date
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    Re: Intel Centrino Wireless N 1000

    1. What I meant by it recognizes all the networks is that any networks in range show up in the list. I then proceed to click on the desired network and it tries to connect. Then I type in a password when requested (note I have also tried to connect to networks with no encryption, such as a mobile hotspot from a smart phone). It sits there and tries to connect, but nothing happens, and after some time it re-asks for the password again, as though the one I typed in previously was incorrect (for the non-encrypted networks, it just keeps trying to connect, but with no avail)

    2 and 3. this was a fresh install. I had never installed ubuntu or any other OS before (obviously except for the standard windows 7 that came with my laptop) on this machine.

    4. this does not help

    5. WEP key

    6. Not sure what you mean by this

  10. #10
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    Re: Intel Centrino Wireless N 1000

    Quote Originally Posted by liquidsix View Post
    5. WEP key
    WEP is an awful encryption technique that can be broken in minutes. Try to stay with WPA AES and a strong encryption key of at least 30 mixed Latin/non-Latin characters. Since I don't use WEP, I have no experience of what usual challenge dialogues pop up. But with WPA, the encryption key should be input first into Network Manager (see below).

    6. Not sure what you mean by this
    I suspect that we mean the same thing when you use "password" for my "encryption key". I reserve use of the phrase "password" for what you type to log in to your computer. Network Manager unfortunately also refers to the encryption key as "password". If my suspicion is correct, no need to reply.

    1. Open Network Manager>Edit Connections>Wireless
    2. Select your SSID and click Edit button
    3. Navigate to Wireless Security>Security
    4. Select WEP
    5. Enter encryption key (aka "password") Make sure this is exactly the same as your router. Case matters.
    6. Make sure "Available to all users" box is checked.
    7. Save and Close.
    8. Reboot.
    Newb: How far must I jump to clear the ledge halfway down?
    Guru: It's bad to jump off cliffs. Let's look at better options.
    Newb: Stop harping about "best practices" and just tell me.


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