I have deployed a pair of WLC4404-100 in a Mobility Group. The WLCs' software version is 126.96.36.199. L3 LWAPP transport mode is configured. There are 50 Lightweight APs joined to the primary controller, in an office building.
Each floor has a minimum of 3 APs. 802.11a radio is disabled on all APs. Channel and power assignment are controlled by the WLC.
All clients associate to a WLAN/SSID with WPA2 encryption and PEAP authentication with a backend Microsoft AD. Wireless clients are a mixture of Intel adapter models on Dell notebooks. The following two adapters always experience frequent disconnections:
(1) Intel(R) PRO/Wireless 3945ABG
Driver version : 10.5.1.69
Driver date : 27/09/2006
(2) Intel(R) PRO/Wireless LAN 2100 3A Mini PCI Adapter
Driver version : 188.8.131.52
Driver date : 7/13/2006
However, the following adapter has never experienced any disconnection:
(1) Intel(R) PRO/Wireless 2200BG
Driver version : 184.108.40.206
Driver date : 10/21/2004
Do you know if this issue is related to WLC or client-specific? Please advise a solution.
About several months agos I went through the same problem, until i switched to Funk odyssey client. That's if you want to refrain from troubleshooting client issues. Both the intel 2915 and 3945 are problematic especially in a highly dense environment. Just look on some of the historic postings within this forum for the intel client and you will see a host of problems with the IntelProset.
We've been through the exact same problems you are having. There are multiple settings that helped to alleviate most of our disconnects. You should definately upgrade to the latest Intel drivers as each version has helped with the disconnect problem. I also recommend upgrading to 220.127.116.11. One of the other changes we made was to disable CCKM on the WLAN and on the client. This one setting helped to eliminate 90% of our disconnect problems.
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...