If you paid someone to walk around your campus with a laptop and you still have the problem, I'd say get a new consultant.
The cheap answer is to use the Carrier Test built into the AP. This will tell you how much signal and noise each AP sees from surrounding radios. That alone will help you correct channelization problems (don't forget you're working in 3 dimensions).
You can get a Spectrum Analyzer for 2.4GHz for a few thousand, but unless you know what you are looking at, and what you are looking for, it may not help you.
Let me know if you want some help, even remotely. I can run the Carrier Test from here if I have telnet access and help you interpret the information.
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...