I am utilizing iOS devices as communication gateways for my application. I am able to utilize the 2G/3G service with the devices by changing the Cellular Data Network settings to neo.iot.net. I connect and transmit data without issue. I am now attempting to use the same devices with the 4G/LTE SIMs. The Cellular Data Network settings are no longer an option. Is this a limitation of the 4G/LTE service vs. the 2G/3G service? Thanks.