Sending station has left the BSS

[daniel.solutis]

Gentlemen, I have a problem with the company that users are connecting and disconnecting the logs and reports about loss of BSS. I read all blogs and forums on this issue and tried all suggestions but continues.

logs:

Sep 14 20:57:27.391: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 1c66.aaba.b38b Reason: Sending station has left the BSS
Sep 14 20:57:31.211: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   1c66.aaba.b38b Associated KEY_MGMT[WPAv2-CP]
Sep 14 20:59:00.974: %DOT11-6-ROAMED: Station e891.2099.42a7 Roamed to c0c1.c0ee.7ab7
Sep 14 20:59:00.974: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station e891.2099.42a7 Reason: Sending station has left the BSS
Sep 14 20:59:29.757: %DOT11-7-AUTH_FAILED: Station 2062.741d.bc14 Authentication failed
Sep 14 21:00:25.607: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 1c66.aaba.b38b Reason: Sending station has left the BSS
Sep 14 21:00:29.459: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   1c66.aaba.b38b Associated KEY_MGMT[WPAv2-CP]
Sep 14 21:01:08.135: %DOT11-6-ROAMED: Station 5c96.9d59.c4b9 Roamed to c0c1.c0ee.7ab7
Sep 14 21:01:08.135: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 5c96.9d59.c4b9 Reason: Sending station has left the BSS
Sep 14 21:01:46.038: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 9027.e4a8.b015 Reason: Sending station has left the BSS
Sep 14 21:02:28.537: %DOT11-7-AUTH_FAILED: Station 2062.741d.bc14 Authentication failed
Sep 14 21:03:24.592: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 1c66.aaba.b38b Reason: Sending station has left the BSS
Sep 14 21:03:28.332: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   1c66.aaba.b38b Associated KEY_MGMT[WPAv2-CP]
Sep 14 21:03:41.835: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   bc4c.c437.2706 Associated KEY_MGMT[WPAv2]

[Ric Beeching]

What troubleshooting have you tried? Are you hiding the SSID? The simple explanation is usually the case for this issue - the clients are roaming away from the AP for a particular reason e.g

- Client moves out of range
- Interference has caused a dropout
- The client cannot see the SSID when roaming between APs
- Other environmental factors causing disruptions

Ric

[daniel.solutis]

in fact we have two APs with the same ssid but at different frequencies to have romaning. we have ap in a hall and another after another lounge with the same ssid. already I visualized interference but rather intend for two APs in each room to improve the signal.

actions taken:

- no dot11 extension aironet;

- packet retries 64 drop-packet

- dot11 wpa handshake timeout 2000

Any further action can be taken?

[Ric Beeching]

So you have two separate APs in Autonomous mode then? Are they within range at the boundary for roaming? It may be that the client has to do a full discovery and full auth once it has left the range of the first AP and that's what is occurring as opposed to a smooth roam.

Ric

[daniel.solutis]

the aps are in a distance so enables romaning. until then because I see messages stating romaning. I plan on for another AP in the hall to improve the signal for everyone.

[mohanak]

Refer the link : https://supportforums.cisco.com/discussion/12344706/clients-disconnected-ap-sending-station-has-left-bss