Currently facing some wireless network connectivity issue. Problem statement is at a fix hour (11:00 am somewhere), the connected endpoint will disconnect, connectivity bounce and after a period of time (say 1-2 minutes) then automatic connecting again..
This is the supporting log i can found during the case reported hour
Coverage hole pre alarm for client xx:xx:xx:xx:xx:xx on 802.11b/g interface of AP yy:yy:yy:yy:yy:yy
I don't have a WLC handy, check under WLAN 802.11a or 802.11b/g and look under DCA and TPC and make sure the refresh (?) is set for every 24 hours. You can test my theory by disabling this. If it is the culprit then you can turn this feature back on OUTSIDE business hours.
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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