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Regular Contributor I
salvi
Posts: 155
Registered: ‎10-05-2011

APs showing down on controller, but they are up and pinging

I noticed today that one of our 3400 master controller is showing alot of APs as being down.  I checked Airwave and it shows them as up.  I am able to ping the APs even from the controller.

 

Why is the controller showing them as being down?

Moderator
cjoseph
Posts: 11,039
Registered: ‎03-29-2007

Re: APs showing down on controller, but they are up and pinging

-What version of code is this?

- Is that controller a master or a local controller?

- Do you see the APs as down on the commandline, GUI or both?

- type "show ap bss-table" to see if those access points are even broadcasting.

Regular Contributor I
scottdoorey
Posts: 178
Registered: ‎02-22-2011

Re: APs showing down on controller, but they are up and pinging

i've seen similar behaviour on a 3200 running 6.1.2.3 and it turned out that the DHCP server had exhausted the scope and the AP's were dropping off the controller and rebooting.

 

I think there was some double allocation going on that was causing the erratic behaviour.

Regular Contributor I
salvi
Posts: 155
Registered: ‎10-05-2011

Re: APs showing down on controller, but they are up and pinging

*Version is 3.4.1.0

*It's a Master

*See them down on the CLI and GUI

*APs that are down are not broadcasting, ones that are up are.