Re: APs randomly not broadcast SSIDs

Ratchapas Shatsa-Nga · ‎10-24-2014

Cisco WLC 4400

Software version 7.0.250

50 APs are in model 1131AG

I monitor this symptom for a week that all APs in the system are not broadcast SSIDs in random time.

All APs are in Local mode.

Up time of AP is several.

Controller associated time just 10 minutes ***

Why APs are disassociated with the controller? and how to fix it?

Thank you in advance,

Rasika Nayanajith · ‎10-24-2014

Did message log of WLC indicating a reason for those disassociation ?

It may be a bug if the behavior is consistent. I think best to reach TAC & see if any known issue with this code. If it is they may able to provide you an engineering release that has a fix

HTH

Rasika

**** pls rate all useful responses ****

Ratchapas Shatsa-Nga · ‎10-31-2014

It does not have any log about SSID or AP.

Thank you,

Ratchapas

Leo Laohoo · ‎11-02-2014

Why APs are disassociated with the controller?

How are the APs powered? PoE or Injector or Power Supply?

Up time of AP is several.

And what do you mean by this? Are you saying that the UP time and the association time of the APs are very, very similar?

Ratchapas Shatsa-Nga · ‎11-03-2014

Hi Leo,

1.APs are connected to PoE switch.

2.UP time of AP is more than time of controller associated time.

UP time is 16d but controller associated time is 6h 14m.

I think it is abnormal in the wireless system.

Please help me to investigate.

Thanks,

Ratchapas

Leo Laohoo · ‎11-03-2014

Ok so if the AP has a higher uptime than the connection time, then check the status of your switch. Something is causing the AP to loose contact with the WLC.

Ratchapas Shatsa-Nga · ‎11-06-2014

Hi Leo,

I will check the switch.

Thanks,

Ratchapas

Ratchapas Shatsa-Nga · ‎11-18-2014

No log is related to access points.

jkilleda · ‎02-25-2018

Hi Ratchapas,

APs randomly not broadcast SSIDs

1) Please check if APs are connected to POE.

2) There might be a problem with the AP hardware or software.

3) Check the VLANs associated to it , are they in the same VLAN or a different one.

4) Check the switch hardware

5) Check the controllers it is connecting to

sbhadrav@cisco.com · ‎03-28-2018

Broadcast / Hide your SSID

There is a field in the beacon that holds your WLAN SSID. You can either hide this or reveal it. If you hide it you lessen the chance of devices finding it. But as Surendra pointed out there is no real security. Becuase there are ways to get the hidden ssid.

So if you hide it or no, no impact to your medium at all.. Why, beacuse the APs still need to beacon ..

Make sense now bud?