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C5210 HA pair , AP's disassociate from one controller and randomly reattach to the backup wireless controller

C5210 HA pair , AP's disassociate from one controller and randomly reattach to the backup wireless controller

Rod_Robertson2
Contributor

‎10-13-2016 07:29 AM

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? )

Regards
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16 REPLIES 16

Rod_Robertson2
Contributor
In response to Ronald_Dvorak

‎10-13-2016 08:50 AM

Hi
We have inherited this installation ,therefore are reluctant to make many changes.. I used to install the previous version of this , before enterasys bought it from Siemons

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Laura
New Contributor III
In response to Ronald_Dvorak

‎10-13-2016 08:50 AM

I also have a C5210 controller and my APs fail over to the other controller. What is the difference between fast and legacy failover? Is there a way I can turn fast off?
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