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  • 1.  individual ap set static channel

    Posted Feb 11, 2022 04:47 PM
    I was troubleshooting an issue with a student's smart tv today.  I wondered why it was connecting to 2.4ghz when its connection history in airwave clearly shows its connected to 5ghz plenty of times in the past.  Channel 128 is what the AP nearest to her had chosen.i wondered if the tv just didn't like channel 128,so i rebooted it to see if it might choose a different channel.  It did, it picked 157, then we tried the tv again, now it connected to 5ghz.  Not sure what the best way to deal with this is.  These are the options i can see. Which option would you choose?

    1.) leave it all auto, and we stand a good chance of it picking a chanel the tv doesn't like again in the future.

    2.) With our old msm AP's i had the option of having all the ap's in a group that did auto channel select, but then could also click on a single ap, and manually choose to set a channel statically.  If we were still using that system, in this situation i might just manually choose a channel that the tv likes to solve this problem for now, and then put a not on my calendar to remember to put it back to auto for the next school year at which point she'll have moved somewhere else and make us a new trouble ticket if the tv doesn't work there.  I don't think there's any good way to do this sort of thing. best i can think of would be to keep the building group i have with all this building's ap's in it. then make a second group for this building thats exactly the same but doesn't allow channel 128. then i'd put the ap near her in this group.  is there any better way?

    3.) I could decide to just not use channel 128 in this building or anywhere.  but in residence halls with lots of students and devices, i think i value having more channels more than fixing one isolated problem.  If we ran into this more frequently, i would feel differently.


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    Adam Forsyth
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  • 2.  RE: individual ap set static channel

    Posted Feb 11, 2022 05:06 PM
    If you are running a system with ArubaOS 8.x and you have an MM, using airmatch ap freeze is the way: https://www.arubanetworks.com/techdocs/CLI-Bank/Content/aos8/airmatch-ap.htm

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    Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.
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  • 3.  RE: individual ap set static channel

    Posted Feb 11, 2022 06:03 PM
    Thznks that does seem like the right answer. i just didn't realize it
    existed because they skipped the feature in the web interface

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    Adam Forsyth
    Director of Network and Systems
    Information Technology Services
    P 563.387.1402 E forsytad@luther.edu
    W http://www.luther.edu




  • 4.  RE: individual ap set static channel

    Posted Feb 11, 2022 06:45 PM
    Edited by cjoseph Feb 11, 2022 06:45 PM
    Fun fact:

    The ability to set a static channel on an AP has never been EDIT: in the GUI in ArubaOS.  The focus has been on automating power and channel.  The capability has always been there, but on the commandline for people who would like to do that.

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    Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.
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