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Thread: Intel pro wireless 3945 Suse 11.0

  1. #1

    Default Intel pro wireless 3945 Suse 11.0

    Hallo
    There are many posts around this subject but unfortunately no
    proposed solution works for me.

    The behaviour of the wireless card is erratic. First, there is
    no green ligth on, it worked fine in SUSE10.2. Someone suggested
    to load the compat drivers. OK, with them the green light shines, but the network manager either doesn't find my wireless
    router or it doesn't connect to it in the rare occasions when
    it finds the router (see below).

    With the standard suse-11 drivers, no light and some network.
    Most of the time, knetworkmanager does not see my wireless
    router. After a number of restarts, and turning the card off
    and on with FnF2 a couple of times, it sometimes detects my
    wireless router and makes a connection. The connection is then
    stable. This is the situation now, that's why I can post this.

    iwlist wlan0 scan gives an erratic response. There are four
    wireless networks in the area. iwlist sometimes detects all
    four, sometimes just one or two. Most strange, while I am
    connected to the network, iwlist may not see my router but it
    detects some of the other routers in the area. Below there
    are two outputs of iwlist. The first one detects two networks,
    Cell 02 is my own. Next run 15 seconds later, it just detects
    one network, not mine!

    Solutions?

    The compat-drivers people suggest that with kernel version
    2.6.26 onwards the problem is solved. My suse-11 distribution
    has kernel 2.6.25.16. Is it possible to upgrade? Will suse 11.1
    have an upgraded kernel? Will this really solve the problem?

    Thank you for listening,

    m.natiello

    HW: Dell xps m 1710
    0c:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG Network Connection (rev 02)
    0c:00.0 0280: 8086:4222 (rev 02)

    iwconfig:
    wlan0 IEEE 802.11g ESSID:"syren"
    Mode:Managed Frequency:2.457 GHz Access Point:
    00:13:46:52:32:F7
    Bit Rate=54 Mb/s Tx-Power=27 dBm
    Retry min limit:7 RTS thr:off Fragment thr=2352 B
    Encryption key:off
    Link Quality=74/100 Signal level=-60 dBm Noise level=-94 dBm
    Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
    Tx excessive retries:0 Invalid misc:0 Missed beacon:0

    iwlistx2:

    wlan0 Scan completed :
    Cell 01 - Address: 00:18:F6:70:44:03
    ESSID:"TeliaGateway00-18-F6-70-44-03"
    Mode:Master
    Channel:1
    Frequency:2.412 GHz (Channel 1)
    Quality=57/100 Signal level=-74 dBm Noise level=-96 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; 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=000000b3dcf564cb
    Cell 02 - Address: 00:13:46:52:32:F7
    ESSID:"syren"
    Mode:Master
    Channel:10
    Frequency:2.457 GHz (Channel 10)
    Quality=72/100 Signal level=-62 dBm Noise level=-96 dBm
    Encryption key:off
    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=00000004dc887d95

    wlan0 Scan completed :
    Cell 01 - Address: 00:18:F6:70:44:03
    ESSID:"TeliaGateway00-18-F6-70-44-03"
    Mode:Master
    Channel:1
    Frequency:2.412 GHz (Channel 1)
    Quality=58/100 Signal level=-73 dBm Noise level=-96 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; 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=000000b3de4cc5f2

  2. #2
    Join Date
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    Default Re: Intel pro wireless 3945 Suse 11.0

    Quote Originally Posted by mnatiello
    Hallo
    There are many posts around this subject but unfortunately no
    proposed solution works for me.

    The behaviour of the wireless card is erratic. First, there is
    no green ligth on, it worked fine in SUSE10.2. Someone suggested
    to load the compat drivers. OK, with them the green light shines, but
    the network manager either doesn't find my wireless
    router or it doesn't connect to it in the rare occasions when
    it finds the router (see below).

    With the standard suse-11 drivers, no light and some network.
    Most of the time, knetworkmanager does not see my wireless
    router. After a number of restarts, and turning the card off
    and on with FnF2 a couple of times, it sometimes detects my
    wireless router and makes a connection. The connection is then
    stable. This is the situation now, that's why I can post this.

    iwlist wlan0 scan gives an erratic response. There are four
    wireless networks in the area. iwlist sometimes detects all
    four, sometimes just one or two. Most strange, while I am
    connected to the network, iwlist may not see my router but it
    detects some of the other routers in the area. Below there
    are two outputs of iwlist. The first one detects two networks,
    Cell 02 is my own. Next run 15 seconds later, it just detects
    one network, not mine!

    Solutions?

    The compat-drivers people suggest that with kernel version
    2.6.26 onwards the problem is solved. My suse-11 distribution
    has kernel 2.6.25.16. Is it possible to upgrade? Will suse 11.1
    have an upgraded kernel? Will this really solve the problem?

    Thank you for listening,

    m.natiello

    HW: Dell xps m 1710
    0c:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG
    Network Connection (rev 02)
    0c:00.0 0280: 8086:4222 (rev 02)

    iwconfig:
    wlan0 IEEE 802.11g ESSID:"syren"
    Mode:Managed Frequency:2.457 GHz Access Point:
    00:13:46:52:32:F7
    Bit Rate=54 Mb/s Tx-Power=27 dBm
    Retry min limit:7 RTS thrff Fragment thr=2352 B
    Encryption keyff
    Link Quality=74/100 Signal level=-60 dBm Noise level=-94 dBm
    Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
    Tx excessive retries:0 Invalid misc:0 Missed beacon:0

    iwlistx2:

    wlan0 Scan completed :
    Cell 01 - Address: 00:18:F6:70:44:03
    ESSID:"TeliaGateway00-18-F6-70-44-03"
    Mode:Master
    Channel:1
    Frequency:2.412 GHz (Channel 1)
    Quality=57/100 Signal level=-74 dBm Noise level=-96 dBm
    Encryption keyn
    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; 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=000000b3dcf564cb
    Cell 02 - Address: 00:13:46:52:32:F7
    ESSID:"syren"
    Mode:Master
    Channel:10
    Frequency:2.457 GHz (Channel 10)
    Quality=72/100 Signal level=-62 dBm Noise level=-96 dBm
    Encryption keyff
    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=00000004dc887d95

    wlan0 Scan completed :
    Cell 01 - Address: 00:18:F6:70:44:03
    ESSID:"TeliaGateway00-18-F6-70-44-03"
    Mode:Master
    Channel:1
    Frequency:2.412 GHz (Channel 1)
    Quality=58/100 Signal level=-73 dBm Noise level=-96 dBm
    Encryption keyn
    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; 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=000000b3de4cc5f2
    Hi
    You might try repositioning your AP aerial as it may be some
    interference and then rescanning. I use to have three AP's around here,
    with a bit of repositioning and channel changing I don't get any issues.

    To quote Larry
    "A 802.11b/g signal occupies 5 channels, thus somebody on channel 1
    uses -1 to 3, someone on channel 6 uses 4 to 8, etc. That is the
    reason that channels 1, 6, and 11 are recommended to reduce overlap
    and interference. "

    --
    Cheers Malcolm (Linux Counter #276890)
    openSUSE 11.0 x86 Kernel 2.6.25.16-0.1-default
    up 7:44, 1 user, load average: 0.02, 0.08, 0.12
    GPU GeForce 6600 TE/6200 TE - Driver Version: 177.80


  3. #3

    Default Re: Intel pro wireless 3945 Suse 11.0

    Quote Originally Posted by malcolmlewis View Post
    Hi
    You might try repositioning your AP aerial as it may be some
    interference and then rescanning. I use to have three AP's around here,
    with a bit of repositioning and channel changing I don't get any issues.

    To quote Larry
    "A 802.11b/g signal occupies 5 channels, thus somebody on channel 1
    uses -1 to 3, someone on channel 6 uses 4 to 8, etc. That is the
    reason that channels 1, 6, and 11 are recommended to reduce overlap
    and interference. "

    --
    Cheers Malcolm
    Thanks but mine is not an antenna problem. The system worked perfectly
    well one our before, when I was on suse 10.2. No inconsistencies whatsoever. Problems started with the upgrade to 11.0. Besides,
    the fact that the green wifi-light on the laptop is not on although the
    card is working, cannot be solved by moving the antenna or changing channel. The whole thing seems to be a driver problem in 11.0

    M. Natiello

  4. #4
    Join Date
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    Default Re: Intel pro wireless 3945 Suse 11.0

    Quote Originally Posted by mnatiello
    malcolmlewis;1881438 Wrote:
    > Hi
    > You might try repositioning your AP aerial as it may be some
    > interference and then rescanning. I use to have three AP's around
    > here,
    > with a bit of repositioning and channel changing I don't get any
    > issues.
    >
    > To quote Larry
    > "A 802.11b/g signal occupies 5 channels, thus somebody on channel 1
    > uses -1 to 3, someone on channel 6 uses 4 to 8, etc. That is the
    > reason that channels 1, 6, and 11 are recommended to reduce overlap
    > and interference. "
    >
    > --
    > Cheers Malcolm
    >


    Thanks but mine is not an antenna problem. The system worked perfectly
    well one our before, when I was on suse 10.2. No inconsistencies
    whatsoever. Problems started with the upgrade to 11.0. Besides,
    the fact that the green wifi-light on the laptop is not on although
    the
    card is working, cannot be solved by moving the antenna or changing
    channel. The whole thing seems to be a driver problem in 11.0

    M. Natiello
    I would have thought the firmware from the iwl3945-ucode rpm would have
    got things up and running then?

    --
    Cheers Malcolm (Linux Counter #276890)
    openSUSE 11.0 x86 Kernel 2.6.25.16-0.1-default
    up 4:46, 1 user, load average: 0.08, 0.04, 0.04
    GPU GeForce 6600 TE/6200 TE - Driver Version: 177.80


  5. #5

    Default Re: Intel pro wireless 3945 Suse 11.0

    Just upgraded to 11 on my laptop and used this get my 3945 working. Solution/How To For intel 3945 a/b/g wireless conn. issues - openSUSE Forums

  6. #6
    Join Date
    Mar 2008
    Location
    Toronto, Canada
    Posts
    310

    Default Re: Intel pro wireless 3945 Suse 11.0

    Quote Originally Posted by mnatiello View Post
    First, there is no green ligth on, it worked fine in SUSE10.2.
    FWIW, the newer iwlwifi driver doesn't support the wifi indicator, whereas the old(er) ipw3945 did. I'm in the same boat; no wifi indicator light, but the interface works. This was a conscious decision, apparently, something to do with the polling in the driver required to keep the light lit reducing battery power, IIRC. There are hacks on the web that can patch against the driver to enable the indicator, but they will require compiling the driver and will not be formally supported.

    I feel your pain. It's a bit ridiculous that Intel can't get the indicator working effectively in the newer driver, but given that the newer driver does work much better (IMHO), it's a simple tradeoff.

    I did have similar symptoms with the newer driver initially in openSUSE (ie. sometimes knetworkmanager simply wouldn't see my network to connect and I couldn't find them with iwlist scan), but that disappeared after a couple of updates. Sorry I can't help you on that part.

    Cheers,
    KV

  7. #7

    Default Re: Intel pro wireless 3945 Suse 11.0

    Dear forum members,

    I appreciate how helpful you are. Unfortunately, no
    suggestion so far has worked for me. I can live without
    the green light for a while, but the erratic behaviour of
    the card, driver or software is bothering. I believe I have
    updated versions of the software, downloaded yesterday
    from a suse mirror in Germany.

    The compat-drivers do not seem to work properly. They
    improve the original drivers in all respects except
    connectivity: green light is on, iwlist never fails to detect
    all networks in the area, but knetworkmanager will not connect to my network although it is seeing it all the time. Nor will ifup. Perhaps this is just because I don't ask
    the proper question to ifup? Is there a howto for
    network connection bypassing yast?
    Back to the original drivers: no green light. iwlist gives
    different answers each time it is run, occasionally finding
    my network or any other. ifup is not an option since the
    system may fail to see the network at the moment it
    is run. knetworkmanager connects to my network after a
    couple of manual restarts of the card and the software.

    No solution in sight ?

    Thanks

  8. #8
    Will Honea NNTP User

    Default Re: Intel pro wireless 3945 Suse 11.0

    else where wrote:

    > I did have similar symptoms with the newer driver initially in openSUSE
    > (ie. sometimes knetworkmanager simply wouldn't see my network to connect
    > and I couldn't find them with iwlist scan), but that disappeared after a
    > couple of updates.  Sorry I can't help you on that part.


    There is something strange here with a similar situation. If I'm at the far
    end of the house my AP signal gets a bit puny - about the same level as 3
    or 4 of the neighbors - and iwlist scan will see only a couple of the
    outside signals. To get my own AP to show up (and connect) I have to go
    stand right in front of it and switch the adapter off and on a few times to
    get it to finally connect after which it holds the connection until the
    signal gets really weak even out in the yard. S2M suspends and even in
    very weak signal areas I get a reasonably reliable re-connect on wake up.
    None of the adjacent channels are interfering - they all use their default
    ch 6 or 9 while I use 11 - but the initial scan seems to want only a
    limited number of channels seen and often loses the weak sisters. If the
    weaker signals don't show on the initial scan, chances of getting them seen
    on subsequent scans are nil - looks like some kind of threshold and cache
    strategy with quirks to me.

    --
    Will Honea

  9. #9

    Default Re: Intel pro wireless 3945 Suse 11.0

    Hallo

    Some update on the problem. I loaded the compat-drivers and
    attempted to restart with ifup since network manager did not
    succeed.
    I use the compat-old drivers since my kernel is 2.6.25.16.
    Green light is on, iwlist works fine with no irregularities
    whatsoever. BUT... the network does not come up. My card cannot
    associate to the access point of the router. iwconfig says:
    Access point: not associated
    Even if I try to force association with iwconfig wlan0 ap HWADD.
    In dmesg you see that it tries to associate 4 times and then
    times out.
    ALSO: The route command is slow. It may take a minute or more to
    answer. Then it shows the "proper" lines, i.e., those I would
    expect. Perhaps both facts are consequence of the same problem,
    i.e., it cannot associate because route does not answer in time,
    for reasons still unknown to me.
    At this point it looks like a configuration mistake from me.
    Hope somebody recognises it and helps.

    Yours,
    M.Natiello

  10. #10
    todos27 NNTP User

    Default Re: Intel pro wireless 3945 Suse 11.0

    Hello everybody,

    My wireless connection can see different AP but doesn't connect to any of them.

    I have read and follow the sticky, and actually that's how I was able to see AP, but still not connecting.

    I tried to connect through Yast and ifup (not sure how works) but didn't succeed.

    Please help, I been trying to make it work for 5 days now :)

    Some outputs:

    hwinfo --wlan
    07: PCI 600.0: 0282 WLAN controller
    [Created at pci.310]
    UDI: /org/freedesktop/Hal/devices/pci_8086_4222
    Unique ID: y9sn.xDGkhUDfcCA
    Parent ID: Z7uZ.2DtjpW0qNEE
    SysFS ID: /devices/pci0000:00/0000:00:1c.3/0000:06:00.0
    SysFS BusID: 0000:06:00.0
    Hardware Class: network
    Model: "Intel PRO/Wireless 3945ABG Network Connection"
    Vendor: pci 0x8086 "Intel Corporation"
    Device: pci 0x4222 "PRO/Wireless 3945ABG Network Connection"
    SubVendor: pci 0x8086 "Intel Corporation"
    SubDevice: pci 0x1001
    Revision: 0x02
    Driver: "iwl3945"
    Driver Modules: "iwl3945"
    Device File: wlan0
    Features: WLAN
    Memory Range: 0xc2000000-0xc2000fff (rw,non-prefetchable)
    IRQ: 4345 (no events)
    HW Address: 00:1f:3c:31:9b:2a
    Link detected: no
    WLAN channels: 1 2 3 4 5 6 7 8 9 10 11 36 40 44 48 52 56 60 64
    WLAN frequencies: 2.412 2.417 2.422 2.427 2.432 2.437 2.442 2.447 2.452 2.457 2.462 5.18 5.2 5.22 5.24 5.26 5.28 5.3 5.32
    WLAN encryption modes: WEP40 WEP104 TKIP CCMP
    WLAN authentication modes: open sharedkey wpa-psk wpa-eap
    Module Alias: "pci:v00008086d00004222sv00008086sd00001001bc02sc80i00"
    Driver Info #0:
    Driver Status: iwl3945 is active
    Driver Activation Cmd: "modprobe iwl3945"
    Config Status: cfg=no, avail=yes, need=no, active=unknown
    Attached to: #19 (PCI bridge)

    iwconfig
    lo no wireless extensions.

    eth0 no wireless extensions.

    wmaster0 no wireless extensions.

    wlan0 IEEE 802.11abg ESSID:""
    Mode:Managed Frequency:2.437 GHz Access Point: Not-Associated
    Tx-Power=15 dBm
    Retry min limit:7 RTS thr:off Fragment thr=2352 B
    Encryption key:off
    Power Management:off
    Link Quality:0 Signal level:0 Noise level:0
    Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
    Tx excessive retries:0 Invalid misc:0 Missed beacon:0

    iwlist wlan0 scan
    wlan0 Scan completed :
    Cell 01 - Address: 00:1B:63:24:71:D9
    ESSID:"NetNut"
    Mode:Master
    Channel:1
    Frequency:2.412 GHz (Channel 1)
    Quality=43/100 Signal level:-83 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=000000082e54718d
    Extra: Last beacon: 1012ms ago
    Cell 02 - Address: 00:18:39:30:AC:9A
    ESSID:"traadloes"
    Mode:Master
    Channel:3
    Frequency:2.422 GHz (Channel 3)
    Quality=71/100 Signal level:-63 dBm Noise level=-127 dBm
    Encryption key:on
    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=0000007c976a9177
    Extra: Last beacon: 792ms ago
    Cell 03 - Address: 00:12:17:DE:39:B8
    ESSID:"disable"
    Mode:Master
    Channel:6
    Frequency:2.437 GHz (Channel 6)
    Quality=63/100 Signal level:-69 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; 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=000000142b07f18d
    Extra: Last beacon: 96ms ago
    Cell 04 - Address: 00:14:D1:C3:A6:6C
    ESSID:"JNET"
    Mode:Master
    Channel:6
    Frequency:2.437 GHz (Channel 6)
    Quality=45/100 Signal level:-82 dBm Noise level=-127 dBm
    Encryption key:on
    IE: WPA Version 1
    Group Cipher : TKIP
    Pairwise Ciphers (2) : TKIP CCMP
    Authentication Suites (1) : PSK
    IE: IEEE 802.11i/WPA2 Version 1
    Group Cipher : TKIP
    Pairwise Ciphers (2) : TKIP CCMP
    Authentication Suites (1) : PSK
    IE: Unknown: 2D1A4C101FFFFF000000000000000000000000000004000000000000
    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=00000196f9bae180
    Extra: Last beacon: 744ms ago

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