We've got a wireless implementation with Wisms and 1142 LAPs and for a while we've been getting decrypt errors and like other posts here say, I've been ignoring them because they haven't been disconnecting clients but now they are getting disconnected. Errors like the one below seem to be causing the client to be disconnecting:
Decrypt error occurred for client 'xx:xx:xx:xx:xx:xx' using 'WPA' key on '802.11b/g' interface of AP 'xx'. - Controller Name: WLC-1
Its happened to 3 out of 5 laptops in one location plus an iPhone 3GS in another location, all the laptops are the same model and on the same versions of of drivers.
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...