Wifi link iwl3945

Fri Apr 16 03:42:34 UTC 2010

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.
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