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Thread: Odd WiFi Issue

  1. #1

    Default Odd WiFi Issue

    Hi
    I've just installed openSUSE for the first time.
    At work (Video Networking) we have started using a new product from CISCO based on SuSE linux servers; to try and get up to speed fast I've installed openSUSE on my home machine (HP nx7400 laptop).
    I'm impressed so far especially with the no hassle instalation. Though I have found an odd problem with my Wireless connection. The wireless chipset is an intel 3945ABG. It works fine in Windows, but in SuSE when I go to Network connections - New connection - Wlan0
    and look at the availible connections, it lists several access-points (variably) but not all the networks in my area and it never finds mine which is all of six feet away!
    I'm guessing this is going to be a driver issue as I know the hardware is fine.

    Can anyone get me started on how to track down this problem.

    Cheers
    J

  2. #2
    Join Date
    Jun 2008
    Location
    Kansas City Area, Missouri, USA
    Posts
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    Default Re: Odd WiFi Issue

    jammybstard wrote:
    > Hi
    > I've just installed openSUSE for the first time.
    > At work (Video Networking) we have started using a new product from
    > CISCO based on SuSE linux servers; to try and get up to speed fast I've
    > installed openSUSE on my home machine (HP nx7400 laptop).
    > I'm impressed so far especially with the no hassle instalation. Though
    > I have found an odd problem with my Wireless connection. The wireless
    > chipset is an intel 3945ABG. It works fine in Windows, but in SuSE when
    > I go to Network connections - New connection - Wlan0
    > and look at the availible connections, it lists several access-points
    > (variably) but not all the networks in my area and it never finds mine
    > which is all of six feet away!
    > I'm guessing this is going to be a driver issue as I know the hardware
    > is fine.
    >
    > Can anyone get me started on how to track down this problem.


    Please post the output of the following:

    /sbin/iwconfig
    sudo /usr/sbin/iwlist scan
    dmesg | grep 3945

  3. #3

    Default

    its been one of those days! when I paste text from the terminal into this forum it kicks it back with:

    The following errors occurred with your submission:

    1. You have included 5 images in your message. You are limited to using 4 images so please go back and correct the problem and then continue again.

    Images include use of smilies, the BB code [img] tag and HTML <img> tags. The use of these is all subject to them being enabled by the administrator.

    What gives? there's no img tags or smilies

  4. #4
    Join Date
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    Default Re: Odd WiFi Issue

    Quote Originally Posted by jammybstard
    its been one of those days! when I paste text from the terminal into
    this forum it kicks it back with:

    The following errors occurred with your submission:

    1. You have included 5 images in your message. You are limited to
    using 4 images so please go back and correct the problem and then
    continue again.

    Images include use of smilies, the BB code [img] tag and HTML
    <img> tags. The use of these is all subject to them being enabled by the
    administrator.

    What gives? there's no img tags or smilies
    Hi
    You need to use code tags
    Code:
    Your text
    --
    Cheers Malcolm (Linux Counter #276890)
    SUSE Linux Enterprise Desktop 11 (x86_64) Kernel 2.6.27.29-0.1-default
    up 19 days 7:04, 3 users, load average: 0.38, 0.21, 0.18
    GPU GeForce 8600 GTS Silent - CUDA Driver Version: 190.18


  5. #5

    Default Re: Odd WiFi Issue

    Cheers Mal'

    As Requested: (What do you see in the tea-leafs)


    /sbin/iwconfig

    Code:
    lo        no wireless extensions.
    
    wmaster0  no wireless extensions.
    
    wlan0     IEEE 802.11abg  ESSID:"BTOpenzone"
              Mode:Managed  Frequency:2.462 GHz  Access Point: 02:24:17:64:A3:88
              Bit Rate=54 Mb/s   Tx-Power=15 dBm
              Retry min limit:7   RTS thr:off   Fragment thr=2352 B
              Encryption key:off
              Power Management:off
              Link Quality=84/100  Signal level:-50 dBm  Noise level=-127 dBm
              Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
              Tx excessive retries:0  Invalid misc:0   Missed beacon:0
    
    eth0      no wireless extensions.
    
    pan0      no wireless extensions.
    sudo /usr/sbin/iwlist scan
    Code:
    lo        Interface doesn't support scanning.
    
    wmaster0  Interface doesn't support scanning.
    
    wlan0     Scan completed :
              Cell 01 - Address: 00:1A:4D:3D:16:73
                        ESSID:"secure_cloud@quantum"
                        Mode:Master                 
                        Channel:4                   
                        Frequency:2.427 GHz (Channel 4)
                        Quality=59/100  Signal level:-72 dBm  Noise level=-127 dBm
                        Encryption key:on                                         
                        IE: WPA Version 1                                         
                            Group Cipher : TKIP                                   
                            Pairwise Ciphers (1) : TKIP                           
                            Authentication Suites (1) : PSK                       
                        IE: IEEE 802.11i/WPA2 Version 1                           
                            Group Cipher : TKIP                                   
                            Pairwise Ciphers (1) : CCMP                           
                            Authentication Suites (1) : PSK                       
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s       
                                  12 Mb/s; 24 Mb/s; 36 Mb/s; 9 Mb/s; 18 Mb/s      
                                  48 Mb/s; 54 Mb/s                                
                        Extra:tsf=000000c8b2377181                                
                        Extra: Last beacon: 1796ms ago                            
              Cell 02 - Address: 00:1F:9F:EB:C0:1D                                
                        ESSID:"O2wireless990033"                                  
                        Mode:Master                                               
                        Channel:1                                                 
                        Frequency:2.412 GHz (Channel 1)                           
                        Quality=31/100  Signal level:-90 dBm  Noise level=-127 dBm
                        Encryption key:on                                         
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s      
                                  24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s       
                                  12 Mb/s; 48 Mb/s                                
                        Extra:tsf=0000001d96542188                                
                        Extra: Last beacon: 2692ms ago                            
              Cell 03 - Address: 00:1B:2F:90:17:82                                
                        ESSID:"SKY68734"                                          
                        Mode:Master                                               
                        Channel:1                                                 
                        Frequency:2.412 GHz (Channel 1)                           
                        Quality=48/100  Signal level:-80 dBm  Noise level=-127 dBm
                        Encryption key:on                                         
                        IE: WPA Version 1                                         
                            Group Cipher : TKIP                                   
                            Pairwise Ciphers (1) : TKIP                           
                            Authentication Suites (1) : PSK                       
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s       
                                  9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s      
                                  48 Mb/s; 54 Mb/s                                
                        Extra:tsf=000000806976a581                                
                        Extra: Last beacon: 2360ms ago                            
              Cell 04 - Address: 02:24:17:64:A3:88                                
                        ESSID:"BTOpenzone"                                        
                        Mode:Master                                               
                        Channel:11                                                
                        Frequency:2.462 GHz (Channel 11)                          
                        Quality=85/100  Signal level:-48 dBm  Noise level=-127 dBm
                        Encryption key:off                                        
                        IE: Unknown: 2D1A0C181AFFFF000000000000000000000000000000000000000000
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s                 
                                  24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s                  
                                  12 Mb/s; 48 Mb/s                                           
                        Extra:tsf=0000000aa5f87188                                           
                        Extra: Last beacon: 12ms ago                                         
              Cell 05 - Address: 02:24:17:64:A3:89                                           
                        ESSID:"BTFON"                                                        
                        Mode:Master                                                          
                        Channel:11                                                           
                        Frequency:2.462 GHz (Channel 11)                                     
                        Quality=85/100  Signal level:-48 dBm  Noise level=-127 dBm           
                        Encryption key:off                                                   
                        IE: Unknown: 2D1A0C181AFFFF000000000000000000000000000000000000000000
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s                 
                                  24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s                  
                                  12 Mb/s; 48 Mb/s                                           
                        Extra:tsf=0000000aa5e74998                                           
                        Extra: Last beacon: 1136ms ago                                       
              Cell 06 - Address: 00:24:17:64:A3:87
                        ESSID:"BTHomeHub2-5PG8"
                        Mode:Master
                        Channel:11
                        Frequency:2.462 GHz (Channel 11)
                        Quality=85/100  Signal level:-48 dBm  Noise level=-127 dBm
                        Encryption key:on
                        IE: WPA Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (2) : CCMP TKIP
                            Authentication Suites (1) : PSK
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (2) : CCMP TKIP
                            Authentication Suites (1) : PSK
                        IE: Unknown: 2D1A0C181AFFFF000000000000000000000000000000000000000000
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                                  24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
                                  12 Mb/s; 48 Mb/s
                        Extra:tsf=0000000aa5e75183
                        Extra: Last beacon: 1136ms ago
    
    eth0      Interface doesn't support scanning.
    
    pan0      Interface doesn't support scanning.
    dmesg | grep 3945
    Code:
    iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 1.2.26ks
    iwl3945: Copyright(c) 2003-2008 Intel Corporation
    iwl3945 0000:10:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
    iwl3945 0000:10:00.0: setting latency timer to 64
    iwl3945: Detected Intel Wireless WiFi Link 3945ABG
    iwl3945: Tunable channels: 13 802.11bg, 23 802.11a channels
    phy0: Selected rate control algorithm 'iwl-3945-rs'
    iwl3945 0000:10:00.0: PCI INT A disabled
    iwl3945 0000:10:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
    iwl3945 0000:10:00.0: restoring config space at offset 0x1 (was 0x100002, writing 0x100006)
    firmware: requesting iwlwifi-3945-1.ucode

  6. #6

    Default Re: Odd WiFi Issue

    Also, my access point info:

  7. #7

  8. #8

    Default Re: Odd WiFi Issue

    Sorted thank you very much guys:
    Code:
    echo "options cfg80211 ieee80211_regdom=EU" > /etc/modprobe.d/cfg80211
    saved the day!

  9. #9
    Join Date
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    Default Re: Odd WiFi Issue

    Quote Originally Posted by jammybstard View Post
    Sorted thank you very much guys:
    Code:
    echo "options cfg80211 ieee80211_regdom=EU" > /etc/modprobe.d/cfg80211
    saved the day!
    Glad its working.

    A note of caution, that probably will NOT work on 11.2 as the file naming convention inside the /etc/modprobe.d/ directory is changing between 11.1 and 11.2.

  10. #10

    Default Re: Odd WiFi Issue

    OK cheers, I'll probably change the channel if it's just going to cause problems.
    It's very crowded in the airwaves around here, so 13 seemed like a good idea at the time, unlucky for some I guess.

    Thanks again
    J

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