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Access network design for branch, remote, outdoor, and campus locations with HPE Aruba Networking access points and mobility controllers.
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Android is not roaming

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  • 1.  Android is not roaming

    Posted Oct 11, 2012 08:00 AM

    Hi,

     

    We have an issue with Android devices and roaming. In a branch office with 8 APs users with iOS devices and Win 7 laptops can roam but android devices do not.

     

    I did some tests: Remove lower transmit rates in the SSID profile, activate co-channel interface mitigation and the last test was to change 2 AP's to Air Monitor mode in order to reduce interferences. With this scenario android devices stay associated to the first AP and don't roam to another AP with a strength signal.

     

    Do you know if it is an Android issue?

     

    How could I fix it?

     

    Thanks

    Jose.



  • 2.  RE: Android is not roaming

    EMPLOYEE
    Posted Oct 12, 2012 12:13 AM

    Are these controller-based APs or IAPS?

    Do you have broadcast/multicast filtering enabled on your network so that your wired clients do not degrade your wireless clients?

    What version of Aruba code is it?

    What encryption are you using on your wireless?

    What android device and what OS is it running?

    Do you have band steering turned on?

     



  • 3.  RE: Android is not roaming

    Posted Oct 15, 2012 05:21 AM

    Hi cjoseph,

     

    The APs are controller-based, configured as RAP.

     

    Broadcast/multicast is enabled in the VAP. However it's not enabled in stateful firewall. The user guide says Broadc/Mcast filtering is intended only for tunnel mode. In this case, one ssid is bridged and the another is in split-tunnel (we are testing the second). Probably the filtering is wrong configured.

     

    The code version is 6.1.3.1.

    The tests were done using an open ssid with captive portal (Amigopod).

    The android device used is a Galaxy S with 2.3 gingerbread release.

    Yes, band steering in turned on.

     

    Thanks.

     

    Jose

     

     



  • 4.  RE: Android is not roaming

    Posted Oct 15, 2012 05:24 AM

    Sorry, I mean that drop broadcast/multicast is enabled int the vap (d = Drop Mcast/Bcast On)



  • 5.  RE: Android is not roaming

    Posted Oct 15, 2012 05:42 AM

    ..and there is no wired clients sharing the vlan associated to this SSID.



  • 6.  RE: Android is not roaming

    EMPLOYEE
    Posted Oct 15, 2012 07:30 AM

    J8888,

     

    You have it correct.  All you should need is drop broadcast/multicast in the VAP.

     

    Since it is android clients on Gingerbread, it is probably the drivers in those older devices that you cannot do anything about

     

    You can try the local-probe-response-threshold setting in the Advanced Tab of the SSID profile.  Start by setting it at 30 and test with Androids as well as non-android devices.

     



  • 7.  RE: Android is not roaming

    Posted Oct 15, 2012 09:39 AM

    Hi cjoseph,

     

    I will test it. Many thanks.

    Jose.