WLC5508 with LAP1142N ignoring Radio Policy

Florian Kelsch · ‎05-03-2012

Hi..

I've got a weird problem with the WLC5508 and LAP1142Ns..

We have a few WLANs using all radios.. And also one that is set to only use 802.11g.. however.. a lot of clients using that WLAN are shown as using 802.11a for connection.. (Apple iPad2 devices).. some use g, but most of them go in with a.

why?

I tried rebooting the iPad.. turning off and on the WiFi.. resetting the LAP that it was connected to.. resetting the Networksetting on the iPad..

all the things I could think of where a dormant setting might have hidden..

it just doesn't care.. always in the client list with protocol 802.11a...

help.. I want the iPads on g...

Thank you..

Thomas

grabonlee · ‎05-03-2012

Hi

On the controller, could you confirm what Radio policy is enabled under the WLAN SSID.

Florian Kelsch · ‎05-03-2012

Thank you for replying..

Yes.. positively set.. see screenshots..

and the Client Monitor..

don't understand that at all..

Stephen Rodriguez · ‎05-03-2012

Go and look at that mac from the client summary, and double check what AP and radio the device is on.

There is the possibility that it's being reported/shown on the wrong radio, if the iPad had been on another WLAN and just moved to this one.

Steve

HTH,
Steve

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Florian Kelsch · ‎05-03-2012

The iPad is configured to only connect to this WLAN..

Client summary says it's connected to an "AP Type: 802.11a"

Another weird thing: I have WMM disabled on the QoS of the WLAN.. but the Summary says: "Power Save Mode: ON"

had that set before resetting Networkconfiguration and reconnect to WiFi with the iPad.. also before doing a reset on the LAP..

It's like settings are ignored?

Thomas

grabonlee · ‎05-03-2012

Thomas,

What code version are you using? Could you do the following one after the other and report what happened.

1. Under RRM, set 11Mbps data rate to disable or supported and set the 18Mbps rate to Mandatory. Note this will make all 802.11b clients not to connect to the AP.

2. disable 802.1a from the command using config 802.11a network disable.

If the above works, you can create RF profiles and map them to AP groups so that 11g clients can connect to certain APs.

Florian Kelsch · ‎05-04-2012

Unfortunately I can't do that atm.. many other WLANs on the WLC.. can't interrupt service..

for now I can only do "surgical" changes to the mentioned AP and WLAN.. no general settings, esp. not things that would cause downtime to clients.

I will try that adjustment when I can.. will probably be a while, though..

Leo Laohoo · ‎05-03-2012

Under the client summary, can you post the iPad's MAC address? I want to make sure.

Steve,

This wouldn't have anything in related to the Apple Sticky Mac authentication bug?

Florian Kelsch · ‎05-04-2012

I can't see a reason to post a MAC address?? what do you want to make sure?

Leo Laohoo · ‎05-04-2012

I can't see a reason to post a MAC address??

I want to make sure the clients that you are seeing are INDEED MACs and not someone who's accidentally getting the password to the SSID.

Don't know with you but alot of us just want to verify everything.

tdennehy · ‎05-08-2014

Looks like I'm running into this bug also on a wism2 running 7.0.220.0

The radio policy states G-only, however both 2.4GHz and 5GHz are being broacasted. Not only can I see the clients listes as 802.11a, but I can go to the site and look with AirMagnet Analyzer and see the beacons. I can also set my personal laptop to 5GHz only and associate.

Therefore, the GUI is showing one thing and the controller is doing another. This is a production network, which is 24x7, so I can't just start screwing around with it.

Certainly there's a WLAN CLI fix? There are a dozen AP groups on the controller, and I just can't go modifying it without affecting Voice. The main issue is that our Voice WLAN is on 5GHz, and now our guest traffic is impacting the voice because they're getting on 5GHz when they're not supposed to be able to.

THOMAS GLASER · ‎05-08-2012

hi

i have the same problem with my wlc5508 and air-lap1142n-e-k9 since upgrade to 7.2.103.0.

wlan 6 is configured "g-only":

>show wlan 6

WLAN Identifier.................................. 6

..................

Radio Policy..................................... 802.11g only

but a lot of clients are connected by 11a radio:

>show client summary

Number of Clients................................ 84

MAC Address AP Name Status WLAN/GLAN/RLAN Auth Protocol Port Wired

00::xx xxx-AP1142-6-2 Associated 6 Yes 802.11g 13 No

00::xx xxx-AP1142-1-5 Associated 6 Yes 802.11g 13 No

00::xx xxx-AP1142-6-3 Associated 6 Yes 802.11a 13 No

00:xx xxx-AP1142-6-3 Associated 6 Yes 802.11g 13 No

00::xx xxx-AP1142-5-3 Associated 6 Yes 802.11a 13 No

00:xx xxx-AP1142-5-1 Associated 6 Yes 802.11a 13 No

00::xx xxx-AP1142-1-5 Associated 6 Yes 802.11a 13 No

00::xx xxx-AP1142-1-6 Associated 6 Yes 802.11a 13 No

00:xx xxx-AP1142-1-7 Associated 6 Yes 802.11g 13 No

is there any solution for this problem?

thanks tom

grabonlee · ‎05-08-2012

Hi Thomas Glaser, l made some suggestions above about disabling dot11a and setting dot11g rates which the other guy didn't confirm if it worked. Could you please do the same and see if it works.

Florian Kelsch · ‎05-08-2012

Hi Osita..

"The other guy" couldn't confirm if it worked yet.. I had to temporarily leave the facility and will not be back there to test for about two weeks..

However.. it's interesting that Thomas Glaser posted his softwareversion.. as I have exactly the same.. (7.2.103)

At least I'm not alone..

Cheers,

Thomas

THOMAS GLASER · ‎05-08-2012

hi

i have already 12mbit as mandatory speed to block 11b clients.

11a radio cannot be disabled because on the same controller/accesspoints there is a second wlan configured

11a-only for voice clients.

greetings

tom