I've a Cisco WLC running version 4.2, I've strange disconnections of some LWAPP access points.From the logs i can see the following message: Fri Oct 3 11:16:39 2008 AP's Interface:0(802.11b) Operation State Down: Base Radio MAC:00:1b:54:ec:db:e0 Cause=Heartbeat Timeout.
Looking on the Cisco website I can't find anything.Can someone help me about this issue?
This is not an IAS issue. The heartbeat is a packet sent on occasion from the WLC management interface to the AP. If the AP doesn't get this reply in a timeley manner it steps up the speed between heartbeats to make sure it didn't accidently miss one. If it still doesn't hear the reply it assumes it has lost the controller and reboots to LWAPP discovery mode. It sounds like you have a connection issue between the AP and the controller.
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
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