topic Clients dropping periodically - WLC5508 in Wireless

Clients dropping periodically - WLC5508

Michael Murray — Sun, 04 Jul 2021 05:38:02 GMT

I've noticed a handful of clients (Apple TV devices) that are constantly associating and disassociating with some of my APs. They do this 24hrs whether there are other clients or not on the same AP so I don't think it is a congestion issue. I see the following on the 5508 controller log:

Thu Sep 6 05:10:56 2012 Client Authenticated: MAC Address:28:cf:da:1e:27:f8

base Radio MAC:00:24:c4:d3:ef:d0 Slot: 1 User Name:unknown IP

Addr:172.31.35.104 SSID:WPS-Apple

Thu Sep 6 05:10:53 2012 Client Deauthenticated: MACAddress:28:cf:da:1e:27:f8

Base Radio MAC:00:24:c4:d3:ef:d0 Slot: 1 User Name: unknown Ip Address:

172.31.35.104 Reason:Unspecified ReasonCode: 1

Thu Sep 6 05:10:33 2012 Client Authenticated: MAC Address:28:cf:da:1e:27:f8

base Radio MAC:00:24:c4:d3:ef:d0 Slot: 1 User Name:unknown IP

Addr:172.31.35.104 SSID:WPS-Apple

Thu Sep 6 05:10:30 2012 Client Deauthenticated: MACAddress:28:cf:da:1e:27:f8

Base Radio MAC:00:24:c4:d3:ef:d0 Slot: 1 User Name: unknown Ip Address:

172.31.35.104 Reason:Unspecified ReasonCode: 1

Thu Sep 6 05:10:11 2012 Client Authenticated: MAC Address:28:cf:da:1e:27:f8

base Radio MAC:00:24:c4:d3:ef:d0 Slot: 1 User Name:unknown IP

Addr:172.31.35.104 SSID:WPS-Apple

When I move the AP to another controller the problem goes away. We are using MAC based auth for these devices. Where can I look to find out why these clients are having what looks like authentication issues?

Clients dropping periodically - WLC5508

Stephen Rodriguez — Fri, 07 Sep 2012 18:38:00 GMT

That's a hard one, and this is going to sound like it's from deep left field.....

But I'd check the traffic between the AP and the original WLC. Things like the path, what VLAN are trunked to the WLC etc. What are the differneces between the WLC connection to the LAN wise.

HTH,
Steve

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Clients dropping periodically - WLC5508

Leo Laohoo — Sat, 08 Sep 2012 03:29:59 GMT

And this happening to ONLY Apple clients? Other type of clients (Androids, Windows, Linux) are fine?

What firmware is your 5500 running?

Clients dropping periodically - WLC5508

Michael Murray — Thu, 13 Sep 2012 12:57:22 GMT

Steve,

I'll check the settings as this is a new controller and it is in a different building than my other two controllers. No other devices on this WLAN are affected though - just the Apple TV boxes.

Regards,

-mike

Clients dropping periodically - WLC5508

Michael Murray — Thu, 13 Sep 2012 13:05:42 GMT

leolaohoo,

5508 is running 7.2.110.0

This is only happening to Apple TV devices. All other Apple clients (iPads, iPhones, laptops, etc) as well as our Windows clients are fine.

It seems to be the combination of this particular controller with all of my Apple TV devices.

AppleTV + 5508 = Problem

AnyOtherDevice + 5508 = Works fine

AppleTV + WiSM(6509) = Works fine

The WiSM controllers are running 7.0.235.0 so I might try rolling back to that on the 5508 and seeing if that makes a difference. I'm guessing it is a difference in configs between the 5508 and WiSM that is causing an issue with the way these devices connect to the network. Not sure where to look for any logging or clues though.

Thanks,

-mike

Clients dropping periodically - WLC5508

Scott Fella — Thu, 13 Sep 2012 13:14:19 GMT

I have Apple TV's running on that code on 5508's with no issues. If you have double checked everything and the configs are the same, then maybe try to downgrade and see if that helps.

Thanks,

Scott

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Clients dropping periodically - WLC5508

aaroncoffman — Fri, 14 Sep 2012 01:08:40 GMT

Michael,

What mode are your APs in? Local or FlexConnect?

Have you actually wittnessed an Apple TV disconnecting or do you just no longer see them as an available device on an iPad for example?

Thanks,

Aaron

Clients dropping periodically - WLC5508

Michael Sales — Fri, 12 Apr 2013 13:13:33 GMT

Hi Guy's and Gal's

I have a problem like Michael does... just a tad different. My AppleTV's are updated to the latest code and my iPads are up to 6.1.3 code. I have a single 5508 running 7.2.110 and Multicasting is working when the AppleTV's stay connected.

The controller sends a "deauth" message and kicks the device off and then is being added to the "Excluded" list.

and its over and over. every 3 to 5 minutes or less in some cases. Then the TV will reconnect and work.

If seen this happen in the past with other non-apple devices as well if "client load balancing" is enabled on the WLAN.

But, this is only happening to the AppleTV devices. I've also disabled "session timeout" as a test and see no difference.

I've searched up and down on the INTERWEB about this and get nothing..

I'm debating upgrading the controller to 7.4 with Bonjour mDNS as an option but, this is an obvious L1 issue!!

Any idea's from the experts?

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(Cisco Controller) >debug client b8:78:2e:06:f0:89

(Cisco Controller) >debug *osapiBsnTimer: Apr 12 08:56:44.751: b8:78:2e:06:f0:89

apfMsExpireCallback (apf_ms.c:591) Expiring Mobile!

*apfReceiveTask: Apr 12 08:56:44.751: b8:78:2e:06:f0:89 Sent Deauthenticate to m

obile on BSSID a4:18:75:e1:85:90 slot 1(caller apf_ms.c:5698)

*apfReceiveTask: Apr 12 08:56:44.751: b8:78:2e:06:f0:89 Scheduling deletion of M

obile Station: (callerId: 46) in 60 seconds

*apfReceiveTask: Apr 12 08:56:44.751: b8:78:2e:06:f0:89 apfMsExpireMobileStation

(apf_ms.c:5728) Changing state for mobile b8:78:2e:06:f0:89 on AP a4:18:75:e1:8

5:90 from Exclusion-list (1) to Exclusion-list (2)

*apfReceiveTask: Apr 12 08:56:44.751: b8:78:2e:06:f0:89 pemApfDeleteMobileStatio

n2: APF_MS_PEM_WAIT_L2_AUTH_COMPLETE = 0.

*apfReceiveTask: Apr 12 08:56:44.751: b8:78:2e:06:f0:89 172.29.19.250 RUN (20) D

eleted mobile LWAPP rule on AP [a4:18:75:e1:85:90]

*pemReceiveTask: Apr 12 08:56:44.751: b8:78:2e:06:f0:89 172.29.19.250 Removed NP

U entry.

*apfMsConnTask_5: Apr 12 08:56:49.381: b8:78:2e:06:f0:89 Ignoring assoc request