C5210 We have recently upgraded to 09.21.11.0004 code which we hoped would resolve this issue.
This system has nearly 1000 AP spread across the two controllers.
We are seeing AP's swap from their primary controller to the back up . this is totally random and unpredictable ( so ,so far no packet capture to sniff ) ( 180/500 swap)
We have been advise so far to increase the poll timers, for the AP's. ( WASSP/CAPWAP ) AP >Global Settings> AP Registration > discovery timers
There does not seem to be any underling networking issues ,as we have no other reported issues or concerns.
Is there a known issue ?
Has anybody else seen this issue and how was it resolved.
Can I priorities the WASSP traffic through the network ( DSCP? )