Repeatedly: Connect and Disconnect

["Zaki Akhmad" <zakiakhmad gmail com>]

Hai All,

I am using IBM Thinkpad R51e. As the wireless card is using Atheros.
Here's the lspci result

za kafka:~$ lspci
04:02.0 Ethernet controller: Atheros Communications Inc. AR5212/AR5213
Multiprotocol MAC/baseband processor (rev 01)

I don't know why, the wireless connection is repeatedly connect and
disconnect on a period of time. Here I notes the /var/log/daemon.log
Which one is wrong? While I am using Windows, the wireless connection is fine

Jul 27 14:17:12 kafka NetworkManager: <info>  Activation (wlan0) started...
Jul 27 14:17:12 kafka NetworkManager: <info>  Activation (wlan0) Stage
1 of 5 (Device Prepare) scheduled...
Jul 27 14:17:12 kafka NetworkManager: <info>  Activation (wlan0) Stage
1 of 5 (Device Prepare) started...
Jul 27 14:17:12 kafka NetworkManager: <info>  Activation (wlan0) Stage
2 of 5 (Device Configure) scheduled...
Jul 27 14:17:12 kafka NetworkManager: <info>  Activation (wlan0) Stage
1 of 5 (Device Prepare) complete.
Jul 27 14:17:12 kafka NetworkManager: <info>  Activation (wlan0) Stage
2 of 5 (Device Configure) starting...
Jul 27 14:17:12 kafka NetworkManager: <info>  Activation
(wlan0/wireless): access point 'ABRAKADABRA' is encrypted, but NO
valid key exists.  New key needed.
Jul 27 14:17:12 kafka NetworkManager: <info>  Activation (wlan0) New
wireless user key requested for network 'ABRAKADABRA'.
Jul 27 14:17:12 kafka NetworkManager: <info>  Activation (wlan0) Stage
2 of 5 (Device Configure) complete.
Jul 27 14:17:12 kafka NetworkManager: <info>  DHCP daemon state is now
14 (normal exit) for interface wlan0
Jul 27 14:17:12 kafka NetworkManager: <info>  DHCP daemon state is now
11 (unknown) for interface wlan0
Jul 27 14:17:12 kafka NetworkManager: <info>  DHCP daemon state is now
14 (normal exit) for interface wlan0
Jul 27 14:17:12 kafka NetworkManager: <info>  Activation (wlan0) New
wireless user key for network 'ABRAKADABRA' received.
Jul 27 14:17:12 kafka NetworkManager: <info>  Activation (wlan0) Stage
1 of 5 (Device Prepare) scheduled...
Jul 27 14:17:12 kafka NetworkManager: <info>  Activation (wlan0) Stage
1 of 5 (Device Prepare) started...
Jul 27 14:17:12 kafka NetworkManager: <info>  Activation (wlan0) Stage
2 of 5 (Device Configure) scheduled...
Jul 27 14:17:12 kafka NetworkManager: <info>  Activation (wlan0) Stage
1 of 5 (Device Prepare) complete.
Jul 27 14:17:12 kafka NetworkManager: <info>  Activation (wlan0) Stage
2 of 5 (Device Configure) starting...
Jul 27 14:17:12 kafka NetworkManager: <info>  Activation
(wlan0/wireless): access point 'ABRAKADABRA' is encrypted, and a key
exists.  No new key needed.

Jul 27 14:17:13 kafka NetworkManager: <info>  SUP: sending command
'INTERFACE_ADD wlan0^I^Iwext^I/var/run/wpa_supplicant^I'
Jul 27 14:17:14 kafka NetworkManager: <info>  SUP: response was 'OK'
Jul 27 14:17:14 kafka NetworkManager: <info>  SUP: sending command 'AP_SCAN 1'
Jul 27 14:17:14 kafka NetworkManager: <info>  SUP: response was 'OK'
Jul 27 14:17:14 kafka NetworkManager: <info>  SUP: sending command 'ADD_NETWORK'
Jul 27 14:17:14 kafka NetworkManager: <info>  SUP: response was '0'
Jul 27 14:17:14 kafka NetworkManager: <info>  SUP: sending command
'SET_NETWORK 0 ssid 414252414b414441425241'
Jul 27 14:17:14 kafka NetworkManager: <info>  SUP: response was 'OK'
Jul 27 14:17:14 kafka NetworkManager: <info>  SUP: sending command
'SET_NETWORK 0 proto WPA'
Jul 27 14:17:14 kafka NetworkManager: <info>  SUP: response was 'OK'
Jul 27 14:17:14 kafka NetworkManager: <info>  SUP: sending command
'SET_NETWORK 0 key_mgmt WPA-PSK'
Jul 27 14:17:14 kafka NetworkManager: <info>  SUP: response was 'OK'
Jul 27 14:17:14 kafka NetworkManager: <info>  SUP: sending command
'SET_NETWORK 0 psk <key>'
Jul 27 14:17:14 kafka NetworkManager: <info>  SUP: response was 'OK'
Jul 27 14:17:14 kafka NetworkManager: <info>  SUP: sending command
'ENABLE_NETWORK 0'
Jul 27 14:17:14 kafka NetworkManager: <info>  SUP: response was 'OK'
Jul 27 14:17:14 kafka NetworkManager: <info>  Activation (wlan0) Stage
2 of 5 (Device Configure) complete.
Jul 27 14:17:21 kafka NetworkManager: <info>  Old device 'wlan0'
activating, won't change.
Jul 27 14:17:54 kafka last message repeated 3 times
Jul 27 14:18:05 kafka NetworkManager: <info>  Old device 'wlan0'
activating, won't change.
Jul 27 14:18:11 kafka NetworkManager: <info>  Supplicant state changed: 1
Jul 27 14:18:11 kafka NetworkManager: <info>  Activation
(wlan0/wireless) Stage 2 of 5 (Device Configure) successful.
Connected to access point 'ABRAKADABRA'.
Jul 27 14:18:11 kafka NetworkManager: <info>  Activation (wlan0) Stage
3 of 5 (IP Configure Start) scheduled.
Jul 27 14:18:11 kafka NetworkManager: <info>  Activation (wlan0) Stage
3 of 5 (IP Configure Start) started...
Jul 27 14:18:12 kafka NetworkManager: <info>  Activation (wlan0)
Beginning DHCP transaction.
Jul 27 14:18:12 kafka dhclient: wmaster0: unknown hardware address type 801
Jul 27 14:18:12 kafka NetworkManager: <info>  DHCP daemon state is now
12 (successfully started) for interface wlan0
Jul 27 14:18:12 kafka NetworkManager: <info>  Activation (wlan0) Stage
3 of 5 (IP Configure Start) complete.
Jul 27 14:18:13 kafka avahi-daemon[2810]: Joining mDNS multicast group
on interface wlan0.IPv6 with address fe80::214:a4ff:fe41:208f.
Jul 27 14:18:13 kafka avahi-daemon[2810]: New relevant interface
wlan0.IPv6 for mDNS.
Jul 27 14:18:13 kafka avahi-daemon[2810]: Registering new address
record for fe80::214:a4ff:fe41:208f on wlan0.*.

Jul 27 14:18:13 kafka NetworkManager: <info>  DHCP daemon state is now
1 (starting) for interface wlan0
Jul 27 14:18:13 kafka dhclient: wmaster0: unknown hardware address type 801
Jul 27 14:18:13 kafka dhclient: DHCPDISCOVER on wlan0 to
255.255.255.255 port 67 interval 7
Jul 27 14:18:13 kafka dhclient: DHCPOFFER from 192.168.1.1
Jul 27 14:18:13 kafka dhclient: DHCPREQUEST on wlan0 to 255.255.255.255 port 67
Jul 27 14:18:13 kafka dhclient: DHCPACK from 192.168.1.1
Jul 27 14:18:13 kafka avahi-daemon[2810]: Joining mDNS multicast group
on interface wlan0.IPv4 with address 192.168.1.10.
Jul 27 14:18:13 kafka avahi-daemon[2810]: New relevant interface
wlan0.IPv4 for mDNS.
Jul 27 14:18:13 kafka avahi-daemon[2810]: Registering new address
record for 192.168.1.10 on wlan0.IPv4.
Jul 27 14:18:13 kafka NetworkManager: <info>  DHCP daemon state is now
2 (bound) for interface wlan0
Jul 27 14:18:13 kafka NetworkManager: <info>  Activation (wlan0) Stage
4 of 5 (IP Configure Get) scheduled...
Jul 27 14:18:13 kafka NetworkManager: <info>  Activation (wlan0) Stage
4 of 5 (IP Configure Get) started...
Jul 27 14:18:13 kafka dhclient: bound to 192.168.1.10 -- renewal in
1784 seconds.
Jul 27 14:18:13 kafka NetworkManager: <info>  Retrieved the following
IP4 configuration from the DHCP daemon:
Jul 27 14:18:13 kafka NetworkManager: <info>    address 192.168.1.10
Jul 27 14:18:13 kafka NetworkManager: <info>    netmask 255.255.255.0
Jul 27 14:18:13 kafka NetworkManager: <info>    broadcast 192.168.1.255
Jul 27 14:18:13 kafka NetworkManager: <info>    gateway 192.168.1.1
Jul 27 14:18:13 kafka NetworkManager: <info>    nameserver 192.168.1.1
Jul 27 14:18:13 kafka NetworkManager: <info>  Activation (wlan0) Stage
5 of 5 (IP Configure Commit) scheduled...
Jul 27 14:18:13 kafka NetworkManager: <info>  Activation (wlan0) Stage
4 of 5 (IP Configure Get) complete.
Jul 27 14:18:13 kafka NetworkManager: <info>  Activation (wlan0) Stage
5 of 5 (IP Configure Commit) started...
Jul 27 14:18:13 kafka avahi-daemon[2810]: Withdrawing address record
for 192.168.1.10 on wlan0.

-- 
Zaki Akhmad