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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