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1142 OEAP Last reboot reset reason: operator changed 11g mode

Hello Cisco WLAN experts,

I'm deploying Cisco 1142 as OEAPs in an important customer's remote location for VIP guests right now.

After some obstacles, I got the whole implemented and APs connected back via Internet to our WLC in the DMZ.

But the WLC running at SW-level 7.0.230.0. shows the following errors now from time to time:

AP's Interface:1(802.11a) Operation State Up: Base Radio MAC:c4:0a:cb:ea:7b:00 Cause=Radio reset due to Init. Status:NA

AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:c4:0a:cb:ea:7b:00 Cause=Radio reset due to Init. Status:NA

AP 'SESLOHUS_AP02', MAC: c4:0a:cb:ea:7b:00 disassociated previously due to AP Reset. Uptime: 0 days, 22 h 51 m 42 s .

Last reset reason: operator changed 11g mode.

Nobody carried out changes on the 802.11b-interface of this WLAN AP !!

The WLAN AP log reveals that the OEAP changed to Standalone Mode !!

show ap eventlog SESLOHUS_AP02

Aug 30 07:35:36.603: %LWAPP-3-CLIENTEVENTLOG: Switching to Standalone mode

*Aug 30 07:35:36.653: %DTLS-5-SEND_ALERT: Send FATAL : Close notify Alert to 163.57.55.45:5246

*Aug 30 07:35:36.653: %WIDS-5-DISABLED: IDS Signature is removed and disabled.

*Aug 30 07:35:36.653: %CAPWAP-5-CHANGED: CAPWAP changed state to DISCOVERY

*Aug 30 07:35:46.001: %CAPWAP-5-DTLSREQSEND: DTLS connection request sent peer_ip: 163.57.55.45 peer_port:5246

*Aug 30 07:35:46.001: %CAPWAP-5-CHANGED: CAPWAP changed state to

*Aug 30 07:35:46.857: %CAPWAP-5-DTLSREQSUCC: DTLS connection created sucessfully peer_ip: 163.57.55.45 peer_port: 5246

*Aug 30 07:35:46.857: %CAPWAP-5-SENDJOIN: sending Join Request to 163.57.55.45

*Aug 30 07:35:46.857: %CAPWAP-5-CHANGED: CAPWAP changed state to JOIN

*Aug 30 07:35:47.010: %CAPWAP-5-CHANGED: CAPWAP changed state to CFG

*Aug 30 07:35:47.323: %CAPWAP-5-CHANGED: CAPWAP changed state to UP

*Aug 30 07:35:47.369: %LWAPP-3-CLIENTEVENTLOG: OfficeExtend Localssid saved in AP flash

*Aug 30 07:35:47.401: %CAPWAP-5-JOINEDCONTROLLER: AP has joined controller SEGOTWLC02

*Aug 30 07:35:47.401: %LWAPP-3-CLIENTEVENTLOG: Switching to Connected mode

*Aug 30 07:35:47.401: %LWAPP-3-CLIENTEVENTLOG: SSID internet added to the slot[0]

*Aug 30 07:35:48.589: %LWAPP-3-CLIENTEVENTLOG: SSID internet added to the slot[1]

*Aug 30 07:35:48.927: %WIDS-5-ENABLED: IDS Signature is loaded and enabled

*Aug 30 07:49:47.782: %CAPWAP-3-ERRORLOG: Received a upload request from controller for event log buffer

What will happen to WLAN clients in case of WLAN AP in Standalone Mode ?

Aug

 

What is causing a 1142 OEAP doing this ?

Are there any CAPWAP timers that can be adapted to improve this bad behaviour ?

I have configured a local switch VLAN on the trunk to the WLAN AP to map WLAN clients into a local VLAN of the remote location.

What will happen to these WLAN clients in case of WLAN AP in Standalone Mode ?

Will they survive the Radio-Reset ? Do they roam to another WLAN AP ? (We installed 2 in each room for redundancy)

Or do they have to go through the whole authentication again ?

Please check and come back with information

Thank You in advance

Winfried

5 REPLIES
Bronze

Re: 1142 OEAP Last reboot reset reason: operator changed 11g mod

the ap get into standalone and the joining another wlc, whose 802.11b/g configuration is not same as original one... then ap will get rebooted...

what is the code of your wlc?

Sent from Cisco Technical Support iPad App

New Member

1142 OEAP Last reboot reset reason: operator changed 11g mode

Hello Li, there is only one WLC to join.

As already said, it is running at SW-level 7.0.230.0

Hall of Fame Super Silver

Re: 1142 OEAP Last reboot reset reason: operator changed 11g mod

Is this 1142 connected to a cable modem or your internal network and routing through the companies WAN? If its going through a cable modem or dsl, it could be an issue with the Internet connection and the 1142 loosing connection to the WLC. Of the AP looses connection, then it will go into standalone mode. In the newer code versions on the WLC, there is an option on the AP to enable link latency. You might want to disable data encryption to see if that helps.

Sent from Cisco Technical Support iPhone App

-Scott
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New Member

Re: 1142 OEAP Last reboot reset reason: operator changed 11g mod

Hello Scott, the 4 1142-devices in that location are connected via a cable modem to 10 Mbps-Internet offered by BT.

Yes encryption is disabled already, to work around the dtls keepalive failure that also caused reboots of the APs.

Link latency is enabled and shows big delays of Maximum 1100ms for example.

Can I improve the situation by increasing AP retransmit count and retransmit interval ?

What do You think happens to local guests that are connected via such an WLAN AP ?

Let's assume they received a local IP-config from the cable modems DHCP-Server and have correctly authenticated via the central WLC doing local HREAP-dat-switching to the DSL-Router.

Are they interrupted by the WLAN AP going to Standalone-Mode ?

I would say, that at this point in time this is only influencing the AP to WLC communication but not the

WLAN Client who talks to the WLAN AP and DSL modem locally.

Is this assumption correct ?

Hall of Fame Super Silver

1142 OEAP Last reboot reset reason: operator changed 11g mode

Link latency is enabled and shows big delays of Maximum 1100ms for example.


> This is pretty high and its not recommended to go over 300ms

Can I improve the situation by increasing AP retransmit count and retransmit interval ?

> No

What do You think happens to local guests that are connected via such an WLAN AP ?

Let's assume they received a local IP-config from the cable modems DHCP-Server and have correctly authenticated via the central WLC doing local HREAP-dat-switching to the DSL-Router.

> If you are using local switching, then this shouldn't be a problem, but if you are centrally switching the traffic, then any glitch is noticabale.

Are they interrupted by the WLAN AP going to Standalone-Mode ?

> If the wlan is locally switch, it shouldn't interrupt the users connection, but you need to find out from users, or you will never know.

I would say, that at this point in time this is only influencing the AP to WLC communication but not the

WLAN Client who talks to the WLAN AP and DSL modem locally.

Is this assumption correct ?

> Again, what does the users say that are onsite.  Don't assume, because it only takes one VIP member to complain to raise this to a critical level.

Thanks,

Scott

Help out other by using the rating system and marking answered questions as "Answered"

-Scott
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