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Beginner

WAP321 - Station had an authentication failure, reason 19/20

Clients can authenticate succesful, work for some time, until they get an authentication failure, reason 19, followed by reason 20. WLAN has to be disabled and again enabled on the client and it's working again unti it come's again to the authentication failures. What do these failures mean? And how can these be resolved?

Thanks, Roland

May 7 2013 16:22:05     info     hostapd[1086]     Station 10:40:f3:a7:7f:f6 had an authentication failure, reason 20     

May 7 2013 16:22:04     info     hostapd[1086]     Station 10:40:f3:a7:7f:f6 had an authentication failure, reason 19     

May 7 2013 15:18:09     info     hostapd[1086]     The wireless client with MAC address 10:40:f3:a7:7f:f6 has been successfully authenticated.     

May 7 2013 15:18:09     info     hostapd[1086]     wlan0: WPA STA 10:40:f3:a7:7f:f6 pairwise key exchange completed (WPAv2)     

May 7 2013 15:18:09     info     hostapd[1086]     wlan0: IEEE 802.11 STA 10:40:f3:a7:7f:f6 associated with BSSID a4:93:4c:b1:cf:08     

May 7 2013 15:18:09     info     hostapd[1086]     wlan0: IEEE 802.11 Assoc request from 10:40:f3:a7:7f:f6 BSSID a4:93:4c:b1:cf:08 SSID WLAN     

May 7 2013 15:18:09     info     hostapd[1086]     wlan0: IEEE 802.11 STA 10:40:f3:a7:7f:f6 deauthed from BSSID a4:93:4c:b1:cf:08 reason 3: STA is leaving IBSS or ESS     

May 7 2013 15:18:09     info     hostapd[1086]     wlan0: IEEE 802.11 Assoc request from 10:40:f3:a7:7f:f6 BSSID a4:93:4c:b1:cf:08 SSID WLAN     

May 7 2013 15:18:09     info     hostapd[1086]     wlan0: IEEE 802.11 STA 10:40:f3:a7:7f:f6 deauthed from BSSID a4:93:4c:b1:cf:08 reason 3: STA is leaving IBSS or ESS     

May 7 2013 14:28:47     info     hostapd[1086]     Station 10:40:f3:a7:7f:f6 had an authentication failure, reason 20     

May 7 2013 14:28:46     info     hostapd[1086]     Station 10:40:f3:a7:7f:f6 had an authentication failure, reason 19     

May 7 2013 14:03:41     info     hostapd[1086]     The wireless client with MAC address 10:40:f3:a7:7f:f6 has been successfully authenticated.     

May 7 2013 14:03:41     info     hostapd[1086]     wlan0: WPA STA 10:40:f3:a7:7f:f6 pairwise key exchange completed (WPAv2)     

May 7 2013 14:03:41     info     hostapd[1086]     wlan0: IEEE 802.11 STA 10:40:f3:a7:7f:f6 associated with BSSID a4:93:4c:b1:cf:08     

May 7 2013 14:03:41     info     hostapd[1086]     wlan0: IEEE 802.11 Assoc request from 10:40:f3:a7:7f:f6 BSSID a4:93:4c:b1:cf:08 SSID WLAN

Everyone's tags (2)
9 REPLIES 9
Beginner

WAP321 - Station had an authentication failure, reason 19/20

Hi Roland, thank you for using our forum, my name is Luis I am part of the Small business Support community. I apologize for you inconvenience Roland, I advise you to change the security strength to a short password or weak security level in order to avoid the delay during the Authentication process. Also please check this document to improve your wireless connection.

https://supportforums.cisco.com/docs/DOC-29821

I hope you find this answer useful

Greetings,

Luis Arias.

Cisco Network Support Engineer.

Rising star

WAP321 - Station had an authentication failure, reason 19/20

Hi, My name is Eric Moyers. I am a Network Support Engineer in the Cisco Small Business Support Center. Thank you for using the Cisco Community Post Forums.

Those Reason Codes stand for the following:

19 Invalid pairwise cipher

20 Invalid AKMP

I personally have never seen those come up. They are not any of the standard codes.

Thanks

Eric Moyers    .:|:.:|:.

Cisco Small Business US STAC Advanced Support Engineer

CCNA, CCNA-Wireless

866-606-1866

Mon - Fri 09:00 - 18:00 (UTC - 05:00)

*Please rate the Post so other will know when an answer has been found.

Beginner

WAP321 - Station had an authentication failure, reason 19/20

I'm experiencing this aswell...

Jan 5 2000 06:40:44infohostapd[1098]Station 1c:62:b8:ab:04:f4 had an authentication failure, reason 20
Jan 5 2000 06:40:43infohostapd[1098]Station 1c:62:b8:ab:04:f4 had an authentication failure, reason 19
Jan 5 2000 06:34:53infohostapd[1098]The wireless client with MAC address 1c:62:b8:ab:04:f4 has been successfully authenticated.
Jan 5 2000 06:34:53infohostapd[1098]wlan0: WPA STA 1c:62:b8:ab:04:f4 pairwise key exchange completed (WPAv2)
Jan 5 2000 06:34:53infohostapd[1098]wlan0: IEEE 802.11 STA 1c:62:b8:ab:04:f4 associated with BSSID d8:67:d9:c4:73:48
Jan 5 2000 06:34:53infohostapd[1098]wlan0: IEEE 802.11 Assoc request from 1c:62:b8:ab:04:f4 BSSID d8:67:d9:c4:73:48 SSID World Domination Inc.
Jan 5 2000 06:34:53infohostapd[1098]wlan0: IEEE 802.11 STA 1c:62:b8:ab:04:f4 deauthed from BSSID d8:67:d9:c4:73:48 reason 3: STA is leaving IBSS or ESS
Jan 5 2000 05:52:01noticesntp[1067]Unable to resolve SNTP server host name:time-a.timefreq.bldrdoc.gov
Jan 5 2000 04:46:59noticesntp[1067]Unable to resolve SNTP server host name:time-a.timefreq.bldrdoc.gov
Jan 5 2000 04:29:17infohostapd[1098]Station 1c:62:b8:ab:04:f4 had an authentication failure, reason 20
Jan 5 2000 04:29:16infohostapd[1098]Station 1c:62:b8:ab:04:f4 had an authentication failure, reason 19

The date is also set wrong on my WAP, but thats not necessarily the issue.

This problem is new as of Friday Evening (7/19/13) last week when the device was relocated.

Beginner

Re: WAP321 - Station had an authentication failure, reason 19/20

This has been corrected.  I backed up the config on the WAP, checked firmware release.  I was on 1.0.2.3.

Updated that, and watched it the utmost scrutiny.  Problems seem to have subsided this morning.  I will post again if anything changes.

EDIT:  If you are already running the latest firmware,  try rebooting the WAP.  I have read some issues about the key intervals.  The problem may still return.

Beginner

I've experiencing this issue

I've experiencing this issue too.  Firmware version 1.0.6.3.

 

Sep 7 2015 01:22:44infohostapd[2774]Station 00:80:92:bc:c5:d3 had an authentication failure, reason 20 
Sep 7 2015 01:22:43infohostapd[2774]Station 00:80:92:bc:c5:d3 had an authentication failure, reason 19 
Sep 7 2015 01:16:45infohostapd[2774]Station 50:3c:c4:6f:80:cb had an authentication failure, reason 20 
Sep 7 2015 01:16:44infohostapd[2774]Station 50:3c:c4:6f:80:cb had an authentication failure, reason 19

 

Rising star

My name Eric Moyers. I am an

My name Eric Moyers. I am an Engineer in the Small Business Support Center.

I am sorry to hear that you are experiencing this issue. 

Can you share some particulars of your setup? WHat kind of encryption are you using, Does this happen with all wireless clients or just certain ones? Is this constantly or just every so often? Does the issue ever disappear? If so, what do you do to make that happen?

Eric Moyers
.:|:.:|:. CISCO | Cisco Presales Technical Support | Wireless Subject Matter Expert

 

Beginner

I experience also failure

I experience also failure reason 16 and the fresh thread I have written my network setup:

https://supportforums.cisco.com/discussion/12599076/wap321-client-authentication-failure-reason-16 

I checked logs and reason 16 has been yesterday so more than 24 hours last apperance.

 

Now last 24 hours this 19/20 issue has affected only Android-tablets. You notice them unable to connect after idle. Wifi has to be turn on/off to get it working.

Thanks

Beginner

I have managed somehow

I have managed somehow reconnecting from clients and rebooting the station. Now reason 17 keeps up showing.

Dec 25 2015 13:08:03 info hostapd[1074] The wireless client with MAC address 00:27:10:be:ad:3c has been successfully authenticated.  
Dec 25 2015 13:08:03 info hostapd[1074] wlan0: WPA STA 00:27:10:be:ad:3c pairwise key exchange completed (WPAv2)  
Dec 25 2015 13:08:01 info hostapd[1074] The wireless client with MAC address 00:80:92:bc:c5:d3 has been successfully authenticated.  
Dec 25 2015 13:08:01 info hostapd[1074] wlan0: WPA STA 00:80:92:bc:c5:d3 pairwise key exchange completed (WPAv2)  
Dec 25 2015 13:08:00 info hostapd[1074] Station 00:27:10:be:ad:3c had an authentication failure, reason 17  
Dec 25 2015 13:07:57 info hostapd[1074] Station 00:80:92:bc:c5:d3 had an authentication failure, reason 17  
Dec 25 2015 13:02:56 info hostapd[1074] The wireless client with MAC address 00:27:10:be:ad:3c has been successfully authenticated.  
Dec 25 2015 13:02:56 info hostapd[1074] wlan0: WPA STA 00:27:10:be:ad:3c pairwise key exchange completed (WPAv2)  
Dec 25 2015 13:02:53 info hostapd[1074] Station 00:27:10:be:ad:3c had an authentication failure, reason 17  
Dec 25 2015 12:57:49 info hostapd[1074] The wireless client with MAC address 00:27:10:be:ad:3c has been successfully authenticated.  
Dec 25 2015 12:57:49 info hostapd[1074] wlan0: WPA STA 00:27:10:be:ad:3c pairwise key exchange completed (WPAv2)  
Dec 25 2015 12:57:45 info hostapd[1074] Station 00:27:10:be:ad:3c had an authentication failure, reason 17

Could RV130 cause this? It's log keeps filling with

1 2015-12-25 1:08:02 PM emerg Fail to delete IPv4 ARP entry  
2 2015-12-25 1:08:02 PM emerg Fail to delete IPv4 ARP entry  
3 2015-12-25 12:44:52 PM emerg Fail to delete IPv4 ARP entry  
4 2015-12-25 12:44:52 PM emerg Fail to delete IPv4 ARP entry  
5 2015-12-25 12:44:52 PM emerg Fail to delete IPv4 ARP entry

Beginner

I removed RV130 from the

I removed RV130 from the network and since that Wap321 has worked, no errors.