Unable to authenticate after some time on WAC120 (wrong password on WPA2 ) with firmware 2.1.5

I have installed firmware 2.1.6 on one of my WAC120 devices with your instructions ( upgrade > factory defaults reset > reconfigure ).

I am running with the 5Ghz steering on and fixed channels on both 2.4Ghz and 5Ghz.
After +/- 1 day the issue is unfortunately reappearing, only on the 5Ghz 11ac.

I will try two things: 

1) configuring a syslog server so I can keep a much longer & complete log history
2) deactivate the steering to 5Ghz - I have the impression the WAC120 is trying hard to negotiate with the client device(s) to switch to 5Ghz but that my iOS devices only change for example when they wake up from a sleeping mode - maybe normal?

Kind regards,

PBrou

Is it possible to share your WAC120 configuration? We will check and update.

Thanks

Raghu

Please find my configuration of WAC120-1 in attach (as PDF).

WAC120-1 (on firmware 2.1.6) is running on address 192.168.1.253.

WAC120-2 (still on firmware 2.1.5) is running on 192.168.1.251.

The loggings & configuration are about thee WAC120-1 on firmware 2.1.6.

Both WAC's are connected on a Netgear 116GS switch.

Don't hesitate to ask if you require additional information or change of configuration to test.
Thanks in advance for your support.
PBrou

Thanks. Can you disable bandsteering and check? 

The following print comes in the log only when band-steering is enabled

"kernel:***<wlan_band_steering_sta_connect_5GHz:657>:status<2>****"

Thanks

Raghu

PBrou Have you had a chance test by disabling band steering? Please share your feedback

Thanks

Raghu

Hi,

I have been running one WAC120 device now during 3 days till it stopped working correctly:

- without the 5Ghz steering

- logging everything on a rsyslog server

What I observed is that the activity led (green - ethernet traffic) and the wifi led (green) were gradually more and more, increasingly active (without really having more traffic being "generated") till nearly constantly green when the device finally did not respond anymore with the following effects at the end:

- wrong password error on 5Ghz 11ac (gives me the impression of a timing error, or not getting enough processor time; kind of traffic storm not giving enough bandwidth for the device)

- nearly no traffic / slow on the 2.4Ghz 11ng

The last hours of the 3rd day I was using airplay for +/- 5 hours, not sure if this accelerated the kind-of-crash.

I have the impression - this is only an impression - that there is some kind of increasing traffic storm, broadcast storm, loop, or something that is gradually increasing the load on the device. And would the wrong password error not be the result of some timing error because of the huge load?

Anyway, in attach you can find the complete logging (quite big) of these 3 days.

I hope you are able to see something strange in the log files.

Meanwhile I will try to check the other traffic on my switch.