Resolved! Why won't my switch 'take' a device name update via HiveManager? 2 dozen switches and 2 of them seem to 'ignore' being renamed.
I have dozens of Aerohive switches and APs, and I've run into a problem recently where one of my switches doesn't 'take' the update when I change the device's name in HM. Consider this scenario: Unpack SR2348P, add serial number to HM, boot device, ...