This is why I would suggest turning band select off. If you assume the majority of clients are well-behaved, or at least can make better decisions than the AP, then band-select is just going to confuse things. A few years ago we used to have only Macs and iPads and would regularly see 80%+ on 5GHz without any band selection on the APs.
-- James Andrewartha Network & Projects Engineer Christ Church Grammar School Claremont, Western Australia Ph. (08) 9442 1757 Mob. 0424 160 877 On 10/10/20 3:32 am, Jake Snyder wrote: > On thing to keep in mind is that iOS devices start behavior poorly when > they have no good option above -65. That’s the threshold they prefer > 5GHz and when you combine that with “hallway design” and “band select” > you are asking for a bad time. > > Scenario: > Client doesn’t see 5GHz above -65. 2.4Ghz looks better, client tries to > associate and bandselect tries to send them back. Client doesn’t think > 5GHz meets its requirements, tries to associate on 2.4Ghz. Round and > round they go. > > If you need band select for devices like iOS that prefer 5GHz, you > likely don’t have enough 5GHz coverage, and trying to force them to 5GHz > only results in issues. > > A better approach is to have at least 6db of transmit power more on 5GHz > than 2.4. This makes 5GHz generally look more attractive so clients > naturally pick it, band select not needed. You can easily do this with > TPC min/max settings. > > Also keep in mind when looking at your survey reports. -65 is as > measured by the device, not your fancy sidekick or aircheck. Figure you > need an extra 7-10db delta to overcome the limitations of some mobiles > devices. That puts you -58 to -55 as measured. ********** Replies to EDUCAUSE Community Group emails are sent to the entire community list. If you want to reply only to the person who sent the message, copy and paste their email address and forward the email reply. Additional participation and subscription information can be found at https://www.educause.edu/community
