[ath9k-devel] ath9k WPA2-PEAP MSCHAPV2 Connectivity issue

[James Hogan <jhogan22.liberty@gmail.com>]

On 09/10/2013 03:50 AM, Holger Schurig wrote:
>> Can you please open a bug in bugzilla.kernel.org to track this ?
> Why?  We even don't know if it is a kernel problem or not.
>
> It might as well be a problem with the AP, e.g.
>
>> 0.002833: wlan0 (phy #0): auth 00:1a:1e:26:29:63 -> 90:f6:52:e5:70:ba
>> status: 17: Association denied because AP is unable to handle additional
>> associated STA
> sounds like a tremendously overloaded AP. The " Deauthenticated
> because sending station is leaving (or has left) the IBSS or ESS"
> sounds like a signal strength issue. It might also be a antenna setup
> issue, e.g. I once had an AP set to diversity, but with only one
> antenna connected, and that produced similar weird results.
>
> However, so far nothing indicates to me that this might be a kernel
> (ath9k driver) problem.
>
> So we're still at the stage to isolate the culprit.
>
> What I'd do is to first stop the interface, i.e. bring it down. Then
> make sure that no Network Manager, wicd or similar tool is running.
> Now, from the command line start wpa_supplicant manually, i.e.
> something like
>
> wpa_supplicant -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf -Dnl80211
>
> if that doesn't tell you more, than try to add -d to get debug
> information (Gentoo users must probably recompile wpa_supplicant with
> USE=debug). If you see something fishy now, then it's probably a
> problem with wpa_supplicant and/or the AP. If you don't see something
> fishy there (i.e., everything works), then it might have been
> NetworkManager/wicd.
I am happy to try to provide you all with as much information as you
guys need and I appreciate your help. I tool your suggestion and set up
wpa_supplicant with debugging and I posted the output online at
http://bpaste.net/show/131278/ . At line 1471 I ended the connection.
I'm not getting even the 20-30 seconds of connection with this setup
though... I don't know if there is a particular reason, but it is just
and observation.

Here is my wpa_supplicant.conf

ctrl_interface=/var/run/wpa_supplicant
update_config=1
ap_scan=1
eapol_version=1
fast_reauth=1
network={
    ssid="Liberty-Secure"
    scan_ssid=1
    key_mgmt=WPA-EAP
    proto=WPA2
    pairwise=CCMP
    group=CCMP
   
ca_cert="/home/jhogan/Downloads/NetworkManager/system-connections/ebe5dd8f-0ab5-4437-a7d7-9e941c364657-ca-cert.pem"
    eap=PEAP
    identity="jhogan22"
    password="***********"
    phase1="peaplabel=1"
    phase2="auth=MSCHAPV2"
}

Also, this is the output of "iwconfig wlan0" after about 40 seconds, as
you can see the Invalid Misc is very high

wlan0     IEEE 802.11abgn  ESSID:"Liberty-Secure" 
          Mode:Managed  Frequency:2.437 GHz  Access Point:
00:1A:1E:26:29:63  
          Bit Rate=117 Mb/s   Tx-Power=20 dBm  
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=61/70  Signal level=-49 dBm 
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:764   Missed beacon:0