We have a WLAN set up with 1242 lightweight AP's connected into the network via a 4402 Controller. We are experiencing random drops where the client is disconnected from the network for no apparent reason. I checked the message logs for the WLCS and this is what keeps repeating: 198: Missing Supported Rate . That I've seen all our Data Rates are either mandatory (for B client speeds) or supported (for g clients). I have a B client that has been on with no drops yet. Is there something to the mandatory setting?
The B client is now dropping at the same time and the message that we get is that it is a signal loss which I find really strange because we're the only 2 on the entire wireless network and we're sitting right under the AP. Any ideas here?
From your msg; the client is being dropped from the AP and NOT the AP dropped from the switch. Are the drivers on the client the latest driver? Is power management turned off or set for 'device always on' on the client? You say "we are right under" the AP, not a good place to be unless you are using a flush mount. My guess is you have a rubber duck so move the access point away from your position and see if you still get dropped. Make sure you have set a channel to use and are not doing least conjested. If the AP channel surfs you will be dropped while it looks for a better channel. Also check all cordless devices and make sure they are not operating in the same bandwidth as the AP. If there is any doubt about cordless devices use a channel of 9 or lower.
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...