AP541N deletes all customers

As I posted at the other thread AP541N on performance degradation, mine did a strange client disconnect last week. It fell by customers all authenticated, but they all thought they were still connected. A quick turn of the wireless card on the laptop would reset the computer on the AP.

It's the same even today.

The device information and configuration:

Device: AP541N

H/W: V01

S/W: 1.9.1

Wireless: Channel 11, the key refresh: 0, TKIP, WPA Personal

Displays all clients who authenticate earlier in the day.

Hours later, I get a rash of:

June 21 at 10:30:43 info hostapd wireless with MAC address client XX had a failure of authentication.
June 21 at 10:30:13 info hostapd wireless with MAC address xx:xx:xx:xx:xx:cc client had a failure of authentication.
June 21 at 10:30:13 info hostapd wireless with MAC address xx:xx:xx:xx:xx:bb client had a failure of authentication.
June 21 at 10:30:13 info hostapd wireless with MAC address xx:xx:xx:xx:xx:aa client had a failure of authentication.
June 21 at 10:30:13 info hostapd wireless with MAC address xx:xx:xx:xx:xx:zz client had a failure of authentication.
June 21 at 10:30:13 info hostapd wireless with MAC address xx:xx:xx:xx:xx:yy client had a failure of authentication.
June 21 at 10:30:13 info hostapd wireless with MAC address client XX had a failure of authentication.
June 21 at 10:30:13 info hostapd wireless with MAC address xx:xx:xx:xx:xx:cc client had a failure of authentication.
June 21 at 10:30:13 info hostapd wireless with MAC address xx:xx:xx:xx:xx:bb client had a failure of authentication.
June 21 at 10:30:13 info hostapd wireless with MAC address xx:xx:xx:xx:xx:aa client had a failure of authentication.
June 21 at 10:30:13 info hostapd wireless with MAC address xx:xx:xx:xx:xx:zz client had a failure of authentication.
June 21 at 10:30:13 info hostapd wireless with MAC address xx:xx:xx:xx:xx:yy client had a failure of authentication.
June 21 at 10:30:13 info hostapd wireless with MAC address client XX had a failure of authentication.

Followed by:

June 21 at 10:30:43 info hostapd wlan0: xx:xx:xx:xx:xx:cc STA IEEE 802.11: désauthentifié due to inactivity
June 21 at 10:30:43 info hostapd customer wireless with MAC address 00: 1B: 77:94:dd:89 had a failure of authentication.
June 21 at 10:30:43 info hostapd wlan0: xx:xx:xx:xx:xx:bb STA IEEE 802.11: désauthentifié due to inactivity
June 21 at 10:30:43 info hostapd customer wireless with MAC address 00:18: of: 4 c: fd:26 failed to authenticate.
June 21 at 10:30:43 info hostapd wlan0: xx:xx:xx:xx:xx:aa STA IEEE 802.11: désauthentifié due to inactivity
June 21 at 10:30:43 info hostapd wireless with MAC address 00:13:e8:f9:c9:f5 client had a failure of authentication.
June 21 at 10:30:43 info hostapd wlan0: xx:xx:xx:xx:xx:zz STA IEEE 802.11: désauthentifié due to inactivity
June 21 at 10:30:43 info hostapd customer wireless with MAC address 00:21:5 d: 36:3e:c4 had a failure of authentication.
June 21 at 10:30:43 info hostapd wlan0: xx:xx:xx:xx:xx:yy STA IEEE 802.11: désauthentifié due to inactivity
June 21 at 10:30:43 info hostapd wireless with MAC address 00:16:6f:10:fb:9f client had a failure of authentication.
June 21 at 10:30:43 info hostapd wlan0: XX STA IEEE 802.11: désauthentifié due to inactivity

Cycling the switch wireless on my laptop, one obtains:

June 21 at 10:33:41 info hostapd wlan0: XX STA WPA: key exchange group completed
June 21 at 10:33:41 info hostapd wireless with MAC address client XX has been properly authenticated.
June 21 at 10:33:41 info hostapd wlan0: XX STA WPA: pairwise key exchange completed (WPAv1)
June 21 at 10:33:41 info hostapd wlan0: IEEE 802.11 STA XX associated BSSID xx:xx:xx:xx:xx:dd
June 21 at 10:33:41 info hostapd wlan0: IEEE 802.11 Association request for XX BSSID xx:xx:xx:xx:xx:dd SSID MYAPSSID
June 21 at 10:33:39 info hostapd wlan0: IEEE 802.11 STA XX deauthed xx:xx:xx:xx:xx:dd BSSID 4 reason

I changed the channel from 11 to 9 and started having this happen like crazy. I now have 3. It was strange, like last week, this has happened once early in the week and was fine for the rest. Same thing this week to the extent that happens at the beginning of the week...

Thank you, Chris. I have notified engineering teams. Your feedback will be returned help

We a permanent solution.

Stephanie

Tags: Cisco Support

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