Unable to encode CAPWAP Control Address

Unanswered Question
Aug 11th, 2009
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Hi All:

My WLC already firmware already update to latest version 6.0 and the management ip and ap manager ip in the same subnet, DNS record already have the CISCO-LWAPP-CONTROLLER and CISCO-CAPWAP-CONTROLLER A record.But Some lightweight AP cannot join the WLC and the error message in WLC as below :

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debug capwap*Aug 11 20:01:01.289: Join resp: Unable to encode CAPWAP Control IPV4 Address


*Aug 11 20:01:01.289: 00:21:d8:44:29:b0 Failed to encode Join response to 172.16

.73.54:29282


*Aug 11 20:01:01.290: 00:21:d8:44:29:b0 Config Response Failure: Unable to send

Join response to 172.16.73.54:29282

--------------------------------------

The Error code is :

%CAPWAP-3-ENCODE_ERR

%CAPWAP-3-DECODE_ERR

--------------------------------------

Any one can tell me what's happen by these log from WLC ?

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Leo Laohoo Tue, 08/11/2009 - 14:39
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Error Message %CAPWAP-3-ENCODE_ERR: Failed to encode [chars] to AP

[hex]:[hex]:[hex]:[hex]:[hex]:[hex]


Explanation Due to an internal error, a CAPWAP message could not be transmitted.

samuelwai Tue, 08/11/2009 - 17:40
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Hi leo :

I got it and i know it a internal error from the cisco document.Do you have any idea how to troubleshoot or solve it?

Thx your messages.

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