Explanation Could not build the CCKM Reassociation response IE.Could not build the CCKM Reassociation response IE.[chars]. Mobile: [hex]:[hex]:[hex]:[hex]:[hex]:[hex] Explanation Could not build the CCKM Reassociation response IE.
In order to find the problem we need to know the cause.
what is the WLC model and code version you are using? what is the logging level you have? What are the wiphones you use? Cisco? or other vendor? have you followed the VoWLAN recommendations as per your wiphones vendor?
have you made site survey? you may consider collecting some debugs on WLC: "debug client " and reproduce the problem for the phone when it moves and disconnects. provide also the exact time stampe at which the disconnection happened.
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Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
This is the start of a display filter cross reference between Wireshark
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