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> wireless random disconnection, i like to stop it from disconnnect me
necrosaro
 Posted: Jul 1 2011, 09:23 AM
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==> /var/log/wpa_supplicant.log <==
CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys

==> /var/log/messages <==
Jul 1 17:17:10 localhost NetworkManager[1366]: <info> (wlan0): device state change: 8 -> 2 (reason 0)
Jul 1 17:17:10 localhost NetworkManager[1366]: <info> (wlan0): deactivating device (reason: 0).
Jul 1 17:17:10 localhost NetworkManager[1366]: <info> (wlan0): canceled DHCP transaction, DHCP client pid 2888
Jul 1 17:17:10 localhost avahi-daemon[1378]: Withdrawing address record for 192.168.1.101 on wlan0.
Jul 1 17:17:10 localhost avahi-daemon[1378]: Leaving mDNS multicast group on interface wlan0.IPv4 with address 192.168.1.101.
Jul 1 17:17:10 localhost avahi-daemon[1378]: Interface wlan0.IPv4 no longer relevant for mDNS.
Jul 1 17:17:10 localhost avahi-daemon[1378]: Withdrawing address record for fe80::216:cfff:fe5a:f160 on wlan0.
Jul 1 17:17:11 localhost NetworkManager[1366]: <info> (wlan0): bringing up device.
Jul 1 17:17:11 localhost kernel: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Jul 1 17:17:11 localhost NetworkManager[1366]: <info> (wlan0): supplicant interface state: starting -> ready
Jul 1 17:17:11 localhost NetworkManager[1366]: <info> (wlan0): device state change: 2 -> 3 (reason 42)

==> /var/log/wpa_supplicant.log <==
Failed to initiate AP scan.

my kernel:
Linux localhost.localdomain 2.6.32-131.2.1.el6.i686 #1 SMP Thu Jun 2 10:08:29 CDT 2011 i686 i686 i386 GNU/Linux

my device:
02:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8038 PCI-E Fast Ethernet Controller (rev 14)
0a:03.0 Ethernet controller: Atheros Communications Inc. AR2413 802.11bg NIC (rev 01)
PM
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helikaon
 Posted: Jul 3 2011, 05:32 AM
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Hi,
this could be some kind of bug of the firmware x driver x kernel version.

i'd try to:
- connect to different wifi spots, to see if the it behaves same everywhere
- if you can manage your own wifi router - try to e.g. change the encryption type used
- update bios of your laptop
- update kernel to latest
- try to install vanilla kernel from kernel.org
- download different firmware from the website of your wifi card vendor

cheers,


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