It's a statistic message, and is used by the controller to maintain statistics and to send a trap. SPAM is LWAPP communications between the controller and AP. In this case, the error is indicating that there is an error in the payload of a packet from the 802.11 side.
We have seen this error usually associate with Intel client devices. If you have Intel devices please make sure they are running the latest drivers.
I looked over the threads and your configuration. The error message you provided is a generic notification message. See some of your other symptons, I strongly suspect issues in your RF. Have you had a site survey done? Any issues with interference? You might want to consider opening a TAC reqest.
I have done a Site Surveye afterwards, because I thought also a RF Problem. I also looked with a spectrum analyzer if there is somthing which could interfere with the installation. But i looked ok. I think open a TAC Case would be the only solution.
The Errors I have on the Switchport is this also relating to a RF Problem? I think there is a Problem between the Switch and the Controller. The Problem is only with the 3750 Platform.
Transferring Crash file from standby:
Login to the Active WLC in HA.
(Cisco Controller) >transfer upload datatype crash
(Cisco Controller) >transfer upload filename <Desired filename>
(Cisco Controller) >transfer up...
This is the start of a display filter cross reference between Wireshark and OmniPeek.
The 1st installment is a table of advanced filters. More filters will be added as time allows.
It is a living doc, so check back for changes every so often
Please feel ...
I have created a Powershell script to automatically add a Wireless Guest User on Cisco WLCs. (tested on 2500 Series)
The script should be completely self explanatory.
Powershell SNMP Module (Install-Module -Name SNMP)
SNMP Write Access to...