Wifi link iwl3945

Sun Apr 18 02:56:56 UTC 2010

On Thu, 2010-04-15 at 21:07 -0700, Paolo Galtieri wrote:

> On 04/15/2010 08:42 PM, Kurian Thayil wrote: 
> 
> > Hi All,
> > 
> > Since the installation of F12 in my Acer Aspire 580 series laptop
> > with Intel 3945ABG wireless module, I am having the issue where my
> > Wifi link gets deactivated and activated (disconnects & connects)
> > frequently. AP is a Netgear WGR router with WEP enabled. Was using
> > Debian GNU/Linux (Etch & Lenny) and I was able to work without any
> > issues. The following is the /var/log/messages when a typical wifi
> > session is disabled and enabled. This issue was severe when there
> > was no security enabled in the router (I gave only MAC address level
> > security). When I included WEP, it became better. Module iwl3945 is
> > loaded in the kernel along with iwlcore, mac80211. Any idea on how
> > to avoid this completely?
> > 
> > Apr 16 09:03:36 localhost NetworkManager: <info>  (wlan0): device
> > state change: 8 -> 2 (reason 0)
> > Apr 16 09:03:36 localhost NetworkManager: <info>  (wlan0):
> > deactivating device (reason: 0).
> > Apr 16 09:03:36 localhost NetworkManager: <info>  (wlan0): canceled
> > DHCP transaction, dhcp client pid 3603
> > Apr 16 09:03:36 localhost NetworkManager: <WARN>  check_one_route():
> > (wlan0) error -34 returned from rtnl_route_del(): Sucess#012
> > Apr 16 09:03:36 localhost avahi-daemon[1265]: Withdrawing address
> > record for 192.168.0.4 on wlan0.
> > Apr 16 09:03:36 localhost avahi-daemon[1265]: Leaving mDNS multicast
> > group on interface wlan0.IPv4 with address 192.168.0.4.
> > Apr 16 09:03:36 localhost avahi-daemon[1265]: Interface wlan0.IPv4
> > no longer relevant for mDNS.
> > Apr 16 09:03:36 localhost NetworkManager: <info>  (wlan0): taking
> > down device.
> > Apr 16 09:03:36 localhost avahi-daemon[1265]: Withdrawing address
> > record for fe80::21b:77ff:fe51:4fcd on wlan0.
> > Apr 16 09:03:37 localhost NetworkManager: <info>  (wlan0): bringing
> > up device.
> > Apr 16 09:03:37 localhost kernel: Registered led device:
> > iwl-phy0::radio
> > Apr 16 09:03:37 localhost kernel: Registered led device:
> > iwl-phy0::assoc
> > Apr 16 09:03:37 localhost kernel: Registered led device:
> > iwl-phy0::RX
> > Apr 16 09:03:37 localhost kernel: Registered led device:
> > iwl-phy0::TX
> > Apr 16 09:03:37 localhost kernel: ADDRCONF(NETDEV_UP): wlan0: link
> > is not ready
> > Apr 16 09:03:37 localhost NetworkManager: <info>  (wlan0):
> > supplicant interface state:  starting -> ready
> > Apr 16 09:03:37 localhost NetworkManager: <info>  (wlan0): device
> > state change: 2 -> 3 (reason 42)
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > starting connection 'Auto virusk'
> > Apr 16 09:03:37 localhost NetworkManager: <info>  (wlan0): device
> > state change: 3 -> 4 (reason 0)
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 1 of 5 (Device Prepare) scheduled...
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 1 of 5 (Device Prepare) started...
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 2 of 5 (Device Configure) scheduled...
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 1 of 5 (Device Prepare) complete.
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 2 of 5 (Device Configure) starting...
> > Apr 16 09:03:37 localhost NetworkManager: <info>  (wlan0): device
> > state change: 4 -> 5 (reason 0)
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation
> > (wlan0/wireless): access point 'Auto virusk' has security, but
> > secrets are required.
> > Apr 16 09:03:37 localhost NetworkManager: <info>  (wlan0): device
> > state change: 5 -> 6 (reason 0)
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 2 of 5 (Device Configure) complete.
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 1 of 5 (Device Prepare) scheduled...
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 1 of 5 (Device Prepare) started...
> > Apr 16 09:03:37 localhost NetworkManager: <info>  (wlan0): device
> > state change: 6 -> 4 (reason 0)
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 2 of 5 (Device Configure) scheduled...
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 1 of 5 (Device Prepare) complete.
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 2 of 5 (Device Configure) starting...
> > Apr 16 09:03:37 localhost NetworkManager: <info>  (wlan0): device
> > state change: 4 -> 5 (reason 0)
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation
> > (wlan0/wireless): connection 'Auto virusk' has security, and secrets
> > exist.  No new secrets needed.
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Config: added
> > 'ssid' value 'virusk'
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Config: added
> > 'scan_ssid' value '1'
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Config: added
> > 'key_mgmt' value 'NONE'
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Config: added
> > 'auth_alg' value 'OPEN'
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Config: added
> > 'wep_key0' value '<omitted>'
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Config: added
> > 'wep_tx_keyidx' value '0'
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 2 of 5 (Device Configure) complete.
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Config: set
> > interface ap_scan to 1
> > Apr 16 09:03:37 localhost NetworkManager: <info>  (wlan0):
> > supplicant connection state:  scanning -> disconnected
> > Apr 16 09:03:37 localhost NetworkManager: <info>  (wlan0):
> > supplicant connection state:  disconnected -> associating
> > Apr 16 09:03:37 localhost kernel: ADDRCONF(NETDEV_CHANGE): wlan0:
> > link becomes ready
> > Apr 16 09:03:37 localhost NetworkManager: <info>  (wlan0):
> > supplicant connection state:  associating -> associated
> > Apr 16 09:03:37 localhost NetworkManager: <info>  (wlan0):
> > supplicant connection state:  associated -> completed
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation
> > (wlan0/wireless) Stage 2 of 5 (Device Configure) successful.
> > Connected to wireless network 'virusk'.
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 3 of 5 (IP Configure Start) scheduled.
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 3 of 5 (IP Configure Start) started...
> > Apr 16 09:03:37 localhost NetworkManager: <info>  (wlan0): device
> > state change: 5 -> 7 (reason 0)
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Beginning DHCP transaction (timeout in 45 seconds)
> > Apr 16 09:03:37 localhost NetworkManager: <info>  dhclient started
> > with pid 3807
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 4 of 5 (IP6 Configure Get) scheduled...
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 3 of 5 (IP Configure Start) complete.
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 4 of 5 (IP6 Configure Get) started...
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 4 of 5 (IP6 Configure Get) complete.
> > Apr 16 09:03:37 localhost dhclient[3807]: Internet Systems
> > Consortium DHCP Client 4.1.1
> > Apr 16 09:03:37 localhost dhclient[3807]: Copyright 2004-2010
> > Internet Systems Consortium.
> > Apr 16 09:03:37 localhost dhclient[3807]: All rights reserved.
> > Apr 16 09:03:37 localhost dhclient[3807]: For info, please visit
> > https://www.isc.org/software/dhcp/
> > Apr 16 09:03:37 localhost dhclient[3807]: 
> > Apr 16 09:03:37 localhost NetworkManager: <info>  DHCP: device wlan0
> > state changed normal exit -> preinit
> > Apr 16 09:03:37 localhost dhclient[3807]: Listening on
> > LPF/wlan0/00:1b:77:51:4f:cd
> > Apr 16 09:03:37 localhost dhclient[3807]: Sending on
> > LPF/wlan0/00:1b:77:51:4f:cd
> > Apr 16 09:03:37 localhost dhclient[3807]: Sending on
> > Socket/fallback
> > Apr 16 09:03:37 localhost dhclient[3807]: DHCPREQUEST on wlan0 to
> > 255.255.255.255 port 67
> > Apr 16 09:03:37 localhost dhclient[3807]: DHCPACK from 192.168.0.1
> > Apr 16 09:03:37 localhost NetworkManager: <info>  DHCP: device wlan0
> > state changed preinit -> reboot
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 4 of 5 (IP4 Configure Get) scheduled...
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 4 of 5 (IP4 Configure Get) started...
> > Apr 16 09:03:37 localhost NetworkManager: <info>    address
> > 192.168.0.4
> > Apr 16 09:03:37 localhost NetworkManager: <info>    prefix 24
> > (255.255.255.0)
> > Apr 16 09:03:37 localhost NetworkManager: <info>    gateway
> > 192.168.0.1
> > Apr 16 09:03:37 localhost NetworkManager: <info>    nameserver
> > '192.168.0.1'
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 5 of 5 (IP Configure Commit) scheduled...
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 4 of 5 (IP4 Configure Get) complete.
> > Apr 16 09:03:37 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 5 of 5 (IP Configure Commit) started...
> > Apr 16 09:03:37 localhost avahi-daemon[1265]: Joining mDNS multicast
> > group on interface wlan0.IPv4 with address 192.168.0.4.
> > Apr 16 09:03:37 localhost avahi-daemon[1265]: New relevant interface
> > wlan0.IPv4 for mDNS.
> > Apr 16 09:03:37 localhost avahi-daemon[1265]: Registering new
> > address record for 192.168.0.4 on wlan0.IPv4.
> > Apr 16 09:03:37 localhost dhclient[3807]: bound to 192.168.0.4 --
> > renewal in 36412 seconds.
> > Apr 16 09:03:38 localhost NetworkManager: <info>  (wlan0): device
> > state change: 7 -> 8 (reason 0)
> > Apr 16 09:03:38 localhost NetworkManager: <info>  Policy set 'Auto
> > virusk' (wlan0) as default for routing and DNS.
> > Apr 16 09:03:38 localhost NetworkManager: <info>  Activation (wlan0)
> > successful, device activated.
> > Apr 16 09:03:38 localhost NetworkManager: <info>  Activation (wlan0)
> > Stage 5 of 5 (IP Configure Commit) complete.
> > Apr 16 09:03:39 localhost avahi-daemon[1265]: Registering new
> > address record for fe80::21b:77ff:fe51:4fcd on wlan0.*.
> > 
> > 
> > 
> > Regards,
> > 
> > Kurian Thayil.
> 
> I also have a 3945ABG and I see no wifi issues with F12.  However, I
> use WPA authentication.  I have on rare occasions had some of my
> connections get dropped while transferring data while other
> connections (even to the same system) remaining active.
> 
> Paolo
> 
> Paolo

Hi Paolo,

Will it be possible for you to check with WEP authentication? Just to
make sure, its not dependent on the authentication method. Due to this
connection issue, I have started using Wired Connection. I know its a
security issue, hence its even OK if you can't change the authentication
method. Thanks in advance.

Regards,

Kurian Thayil.
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