I think your tough out of luck with using 2.4GHz in that environment. The spectrum analyzer that is built into the Meraki access points is 'neat' but I've never found it to be accurate so I don't rely on it that much. With that being said it does seem to show a higher noise floor due to all the activity in that location. If I were you, I would look to upgrade the devices that are 2.4 only with dual band chips
... View more