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Contributor I
Posts: 21
Registered: ‎11-25-2015

Band steering is Causing Connection Drops with iOS Devices

Hi All -

 

I've been getting several complaints from iOS/iPad users when bandsteering is enabled.  I've seen this occur in action a few times but the iOS device will connect momentarily, drop and reconnect to WiFi...sometimes this will occur several times throughout a given time period.

 

Turning off Band Steering resolves the connection drops but obviously no longer steers clients to the faster 5.0 GHz connection.

 

I don't believe it to be an issue with client load - only 20-30 devices (40 max) would ever be connected to the 4 IAP 225s.   The IAP 225s themselves are located in a 3,500 sq ft location with 2 on the first floor and 2 on the second floor.

 

Any ideas on what I can check or reconfigure to allow band steeering to work without the multiple connection drops?

 

802.11R, K & V are enabled as well for the single SSID that's configured.

 

Thanks

 

Guru Elite
Posts: 19,990
Registered: ‎03-29-2007

Re: Band steering is Causing Connection Drops with iOS Devices

[ Edited ]
If you are running ArubaOS 6.3 or newer, Client Match is enabled by default which replaces band steering. Please disable band steering on all of your virtual APs. 802.11k, r are not really necessary. 802.11v can help with Client Match in 6.4.3.X and above. Making the min and max arm power match the output power range of your clients has a greater effect on all of your clients, overall. Enabling 802.11k and r are not a panacea and if your RF is not right, they will not save you.
Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Validated Reference Design Guides : http://community.arubanetworks.com/t5/Validated-Reference-Design/tkb-p/Aruba-VRDs
Guru Elite
Posts: 19,990
Registered: ‎03-29-2007

Re: Band steering is Causing Connection Drops with iOS Devices

Long story short;

 

Disable 802.11r and 802.11k.

 

Read the post here:   http://community.arubanetworks.com/t5/Technology-Blog/Removing-the-Bottleneck-in-Wireless/ba-p/77978 and see if it can give you any ideas about what you can do.

 

Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Validated Reference Design Guides : http://community.arubanetworks.com/t5/Validated-Reference-Design/tkb-p/Aruba-VRDs
Contributor I
Posts: 21
Registered: ‎11-25-2015

Re: Band steering is Causing Connection Drops with iOS Devices

Thanks - I'll disable 802.11K and R and also disable Band Steering.

 

I wasn't aware Client Match was the best practice- not sure if I missed it in the guide or if I had an old version where it wasn't mentioned.  Regardless, thanks for the information this helps.

 

Guru Elite
Posts: 19,990
Registered: ‎03-29-2007

Re: Band steering is Causing Connection Drops with iOS Devices

[ Edited ]

Client Match was developed after band steering. Band steering only works on association to steer a dual band client to the 5ghz. Client match works constantly even after a client has associate to steer and to load balance. Steering can move a client to the correct band, but also move it to an access point that can see it better.

 

Please see the article here: http://community.arubanetworks.com/t5/Controller-Based-WLANs/Why-client-match-is-not-working-well-on-some-users/ta-p/234533

Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Validated Reference Design Guides : http://community.arubanetworks.com/t5/Validated-Reference-Design/tkb-p/Aruba-VRDs
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