Community discussions

MikroTik App
 
RogerWilco
Member
Member
Topic Author
Posts: 434
Joined: Wed Feb 16, 2011 6:02 am
Location: Australia

Group Key Exhange Timeout

Tue Oct 15, 2013 2:02 am

Since upgrading to 6.1 I have been getting group key exchange timeout errors. I've now upgraded to 6.4 and the same issue is still there. The station is dropped about 10 times per day. I've searched the forums and there doesn't seem to be a definitive fix.
I've tried hiding the SSID and changing frequency with no luck. Disabling WPA is not an option.
I've looked at this http://wiki.mikrotik.com/wiki/Wireless_Debug_Logs but it doesn't have any advice or anything useful at all really.

My 711UA-2HnD is about 6 months old and I did not get them on my previous - could it be the router itself? Nothing at all has changed on the Ubiquiti end.

MikroTik - bridge
/interface wireless security-profiles
set [ find default=yes ] group-ciphers="" supplicant-identity=MikroTik \
    unicast-ciphers=""
add authentication-types=wpa2-psk eap-methods="" management-protection=\
    allowed mode=dynamic-keys name=wpa2 supplicant-identity="" \
    wpa2-pre-shared-key=XXXX
/interface wireless
set 0 antenna-gain=11 band=2ghz-b/g country=australia disabled=no \
    frequency-mode=regulatory-domain l2mtu=2290 mode=bridge name=wlan \
    security-profile=wpa2 wds-default-bridge=wds-bridge wds-mode=dynamic \
    wireless-protocol=802.11
and the log
oct/15 08:20:30 wireless,info debug: XXXX@wlan: disconnected, group k
ey exchange timeout 
UBNT AirGrid - Station WDS
Oct 12 19:07:07 wireless: ath0     Received deauth from XXXX. Reason: Group key handshake timeout (16).
Oct 12 19:07:07 wireless: ath0     New Access Point/Cell address:Not-Associated
Oct 12 19:07:07 wpa-supplicant: CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys
 
samsung172
Forum Guru
Forum Guru
Posts: 1191
Joined: Sat Apr 04, 2009 3:45 am
Location: Østfold - Norway
Contact:

Re: Group Key Exhange Timeout

Tue Oct 15, 2013 2:08 am

This use to be cause a bug in wireless client encryption. Common in hotspots. when you don't have 100% control of clients. Try to change encryption settings. I don't know about your setup. try to set wps2 psk - aes ccm
 
RogerWilco
Member
Member
Topic Author
Posts: 434
Joined: Wed Feb 16, 2011 6:02 am
Location: Australia

Re: Group Key Exhange Timeout

Tue Oct 15, 2013 2:47 am

Thanks. I'm already using wpa2-psk.
 
samsung172
Forum Guru
Forum Guru
Posts: 1191
Joined: Sat Apr 04, 2009 3:45 am
Location: Østfold - Norway
Contact:

Re: Group Key Exhange Timeout

Wed Oct 16, 2013 1:08 am

but not group-ciphers=aes-ccm
 
RogerWilco
Member
Member
Topic Author
Posts: 434
Joined: Wed Feb 16, 2011 6:02 am
Location: Australia

Re: Group Key Exhange Timeout

Wed Oct 16, 2013 2:12 am

but not group-ciphers=aes-ccm
In WinBox, this is ticked.

Who is online

Users browsing this forum: jaclaz, Semrush [Bot] and 23 guests