strange association issue with AP, cant route packets

[geek1234]

I cannot route packets from the thinkpad x60 on fc8 even though wireless card is associated with an AP which is open and unsecured. Network mager just cannot get an ip address. Using dhclient returns no dhcpoffers even though I know it is on offer because windows and everyone else uses that. Static routes did not work either and I could not even ping my gateway. So it is something related to association with AP but cant figure out what.

I have th intel 3945 and fc8 has the iwl2945 driver. Here is some diagnostic output. Pay close attention to the output of dmesg below. Even though the network is open, i see messages that talk about authentication and deauthentication to AP. I feel that this 'deauthentication' is the problem and I am not sure what it is.

iwconfig output
---------------

wlan0 IEEE 802.11a ESSID:"XXX"
Mode:Managed Frequency:5.22 GHz Access Point: 00:133:10:5E:20
Bit Rate=11 Mb/s Tx-Power=17 dBm
Retry min limit:7 RTS thr:off Fragment thr=2352 B
Link Quality=82/100 Signal level=-52 dBm Noise level=-86 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0


ifconfig output
---------------
wlan0 Link encap:Ethernet HWaddr 00:1C:BF:26:37:FE
inet6 addr: fec0::9:21c:bfff:fe26:37fe/64 Scope:Site
inet6 addr: 2002:a027:f3a1:9:21c:bfff:fe26:37fe/64 Scope:Global
inet6 addr: 2002:a027:fc0f:8:21c:bfff:fe26:37fe/64 Scope:Global
inet6 addr: fec0::8:21c:bfff:fe26:37fe/64 Scope:Site
inet6 addr: 2002:a027:fdf7:8:21c:bfff:fe26:37fe/64 Scope:Global
inet6 addr: 2002:a027:f6a0:8:21c:bfff:fe26:37fe/64 Scope:Global
inet6 addr: 2002:803b:9d69:8:21c:bfff:fe26:37fe/64 Scope:Global
inet6 addr: fe80::21c:bfff:fe26:37fe/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:107468 errors:0 dropped:0 overruns:0 frame:0
TX packets:13 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:24194272 (23.0 MiB) TX bytes:1302 (1.2 KiB)




wlan0: authenticated
wlan0: associate with AP 00:13:c3:10:5e:20
wlan0: RX ReassocResp from 00:13:c3:10:5e:20 (capab=0x421 status=0 aid=255)
wlan0: associated
wlan0: CTS protection enabled (BSSID=00:13:c3:10:5e:20)
wlan0: switched to short barker preamble (BSSID=00:13:c3:10:5e:20)
wlan0: WMM queue=2 aci=0 acm=0 aifs=3 cWmin=15 cWmax=1023 burst=0
ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
wlan0: disassociate(reason=3)
wlan0: WMM queue=3 aci=1 acm=0 aifs=7 cWmin=15 cWmax=1023 burst=0
wlan0: WMM queue=1 aci=2 acm=0 aifs=2 cWmin=7 cWmax=15 burst=30
wlan0: WMM queue=0 aci=3 acm=0 aifs=2 cWmin=3 cWmax=7 burst=15
wlan0: RX deauthentication from 00:13:c3:10:5e:20 (reason=2)
wlan0: deauthenticated
wlan0: RX deauthentication from 00:13:c3:10:5e:20 (reason=2)
wlan0: authenticate with AP 00:13:c3:10:5e:20
wlan0: RX authentication from 00:13:c3:10:5e:20 (alg=0 transaction=2 status=0)
wlan0: authenticated
wlan0: associate with AP 00:13:c3:10:5e:20
wlan0: RX ReassocResp from 00:13:c3:10:5e:20 (capab=0x421 status=0 aid=3)
wlan0: associated
wlan0: CTS protection enabled (BSSID=00:13:c3:10:5e:20)
wlan0: switched to short barker preamble (BSSID=00:13:c3:10:5e:20)
wlan0: disassociate(reason=3)

[stevea]

I suspect it's your WAP.

What wireless router do you use ?

You should NOT have the SSID (aka ESSID) hidden, this is not a security feature (See the Cisco website for details).

What authentication method do you use ?

An "iwlist scan" post might be useful. Perhaps you are in same or an adjacent channel as another WAP. Normally you should arrange for your access point to be at least 2 away from any other in the neighborhood (channel 9 vs channel 11 for example).

[stevea]

Ignore the channel comment, you are on 802.11a - no idea about the issue there.

RX packets:107468 errors:0 dropped:0 overruns:0 frame:0
TX packets:13 errors:0 dropped:0 overruns:0 carrier:0

This looks very odd unless the system has been up for hours and not connected.
You received 100k packets but have only transmitted 13. 13 out makes sense if you are
just trying to connect but the 100k is odd.

Your 11mbit rate is quite low for an 'a'.
I'd suggest you fix your WAP to supply 802.11g only if possible.