Latest working kernel version: never
Earliest failing kernel version: never
Distribution: fedora 9 + git kernel
Hardware Environment: macbook pro


I got strange state of my atheros wifi adapter.

After some time of work with wifi connection i got lose route to my lan network. That look like transmission are broken. I can see everything work fine: My wifi connection established, signal strength is good, wifi adapter responding, wifi router responding but i have no packets input/output.

Here the state:

[axet@axet-laptop ~]$ iwconfig  wlan0

wlan0     IEEE 802.11abgn  ESSID:"wifi.local"  

          Mode:Managed  Frequency:2.412 GHz  Access Point: 00:1C:F0:BD:01:06   

          Bit Rate=1 Mb/s   Tx-Power=23 dBm   

          Retry min limit:7   RTS thr:off   Fragment thr=2352 B   

          Power Management:off

          Link Quality=39/100  Signal level:-70 dBm  Noise level=-95 dBm

          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0

          Tx excessive retries:0  Invalid misc:0   Missed beacon:0



[axet@axet-laptop ~]$ 


[axet@axet-laptop ~]$ iwlist wlan0 scan

wlan0     Scan completed :

          Cell 01 - Address: 00:1C:F0:BD:01:06

                    ESSID:"wifi.local"

                    Mode:Master

                    Channel:1

                    Frequency:2.412 GHz (Channel 1)

                    Quality=54/100  Signal level:-60 dBm  Noise level=-95 dBm

                    Encryption key:on

                    IE: IEEE 802.11i/WPA2 Version 1

                        Group Cipher : CCMP

                        Pairwise Ciphers (1) : CCMP

                        Authentication Suites (1) : PSK

                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s

                              9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s

                              48 Mb/s; 54 Mb/s

                    Extra:tsf=0000002fcc69e1b1

                    Extra: Last beacon: 97ms ago



[axet@axet-laptop ~]$ 


[axet@axet-laptop ~]$ ifconfig  wlan0

wlan0     Link encap:Ethernet  HWaddr 00:19:E3:D3:7B:51  

          inet addr:192.168.54.5  Bcast:192.168.54.255  Mask:255.255.255.0

          inet6 addr: fe80::219:e3ff:fed3:7b51/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:221582 errors:0 dropped:0 overruns:0 frame:0

          TX packets:201102 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000 

          RX bytes:261861750 (249.7 MiB)  TX bytes:22927461 (21.8 MiB)



[axet@axet-laptop ~]$ 



/var/log/messages at problem time:
Sep 15 12:34:50 localhost NetworkManager: <info>  (wlan0): supplicant connection state change: 7 -> 6

Sep 15 12:34:50 localhost NetworkManager: <info>  (wlan0): supplicant connection state change: 6 -> 7



[axet@axet-laptop ~]$ ps aux|grep wpa

root      2221  0.0  0.0   5452  1704 ?        S    10:10   0:00 /usr/sbin/wpa_supplicant -c /etc/wpa_supplicant/wpa_supplicant.conf -u -f /var/log/wpa_supplicant.log

axet     11449  0.0  0.0   5040   700 pts/0    R+   12:44   0:00 grep wpa

[axet@axet-laptop ~]$ 



/var/log/wpa_supplicant.log


Associated with 00:1c:f0:bd:01:06

WPA: Key negotiation completed with 00:1c:f0:bd:01:06 [PTK=CCMP GTK=CCMP]

CTRL-EVENT-CONNECTED - Connection to 00:1c:f0:bd:01:06 completed (reauth) [id=0 id_str=]

WPA: Group rekeying completed with 00:1c:f0:bd:01:06 [GTK=CCMP]



but have no route to host:

[axet@axet-laptop ~]$ telnet 192.168.54.1

Trying 192.168.54.1...

telnet: connect to address 192.168.54.1: No route to host

[axet@axet-laptop ~]$ 


when i sequentially run ifconfig wlan0, i get only  TX packets increace counter, and static RX packets.


No errors on dmesg. Normal icon on NetworkManger (gnome) with signal strength. To fix that state i need reconnect to wifi adapter.