Wifi link iwl3945

Sun Apr 18 17:32:41 UTC 2010

On Sat, 2010-04-17 at 20:36 -0700, Paolo Galtieri wrote:

> On 04/17/2010 07:56 PM, Kurian Thayil wrote: 
> 
> > 
> > 
> > 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.
> 
> I setup a WEP connection and it connected just fine.  It's been
> running for about 10 minutes with no disconnects.  I'll keep running
> for a while.  I've been doing updates to try to keep the network busy
> to see if that has any effect.
> 
> Paolo

Thank you so much Paolo. Please do let me know how it goes. If its
working for you, that it could be the issue with my wireless card :-(.
Lets see.

Regards,

Kurian Thayil.
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