It may be due to signal bounce/propagation. you can try moving the AP to another location and see if the CRC still increase.
The access point is always listening for wireless frames, meaning that if it detects energy, it tries to translate what it hears into 802.11 frames. This could come from clients that are associated to a different AP, it could be from other APs, or any other 802.11 device that is operating on the frequency that the AP is using. Theenergy could also come from wireless phones and other non-802.11 devices. In short, there are a lot of possible sources that can generate traffic.
As a result of the signals that the access point detects, some of them are immediately discarded as "Header CRC errors."
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...