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Double check your configuration settings and set up a syslog server. You should be able to troubleshoot once you have the logs. Could be as simple as a misconfiguration or as complicated as something interfering with the radios.
Change your retry values at the client and the AP to the max to see if you can 'hang onto' the AP longer, then adjust down.
You can use the Carrier Test to watch for high noise values. I never run ACU in % mode because the information is near meaningless - it tells you % quality based on signal minus noise. If you are close to the AP, the signal is so strong that even a high noise value is masked. Use the dBm mode and compare number to the APs Carrier Test.
We are having the same problem. After a long troubleshooting period with Cisco and swapping every piece of gear, a different tech said that the must be too much radio traffic in the area due to the large number of retries and duplicate packets. We actually had the bridge drop association for small time periods. People moved out of the building for other reasons, but I would like to get it working properly. Please let me know if you come across a fix.
I've experienced similar problems in a point to point link on BR 350 devices with V11.10t1 or 11.21firmware. I had good site survey values on radio side, the carrier test have been done, a fixed channel have been configured, and nevertheless I had ping fluctuations. Later I've used auto sensing on radio side to see if the bridge tryes to change itself the channel in despite of the satisfying site survey and I've seen that it was
Today I've opened a case on the TAC because the relationship with the customer is going to be critical and Cisco could not provide any significant help....
Further I've seen that the use of Wep 128 + Mic + Tkip features did not work properly and were not reliable. The link was broken every time I'd used this security features with this firmware versions.
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...