Wlan 2100 controller

[TameerCisco]

hi everyone , i am new in cisco community . i am facing a problem with wlan Controller 2100 . i have two wlan 2100 controller, all of a sudden it stops broadcasting SSIDs and my access point associated with controller starts blinking ( which means it is not able to synchronizing ) . so everytime i have to walk down to the server room and has to restart the controller by turning off and on . i have tried deploying other wlan controller 2100 i am facing the same .  it continously happened 3 or 4 times a day.

yours urgent sggestion or help will be highly appreciable.

thank you

AAMIR

[jonathanaxford]

Hi Tamer,

Are you saying that the only way to get the AP to function again is to restart the controller? Is there just a single AP connected to the controller or do all (lots) of APs all start blinking and fail at this point?

If it is just a single AP, does rebooting the just the AP also fix the problem?

Many thanks

Jonathan

[TameerCisco]

Hi jonathan,

thank you very much for replying . no i have around 6 Cisco APs connected to Controller all behave the same still .i have replaced all the AP as well. today also the wlan controller restarted 3 times by itself. any suggestion.

regards,

Tamer 

[sean_evershed]

Hi,

Are you saying that both controllers are experiencing problems?

Are there are any error logs on the switch to which the controllers are connected to?

Are there any error messages on the controllers themselves?

Have you checked the cabling to all devices?

Have there been any recent changes to your network that could have impacted the controllers?

[TameerCisco]

hi ,

yes i have checked the logs of switch i have found nothing . the switch port shows not connected when the controller goes down. do you think it could be the hardware issue.

regards,

Tamer