@cisco_Meraki, you need to get a 4g modem setup through a provider if you plan on using a 4g connection as your uplink. I provided links to compatible USB modems above, but I think you may have better luck if you can get one that has ethernet connectivity for the MX appliance. I think it would simplify the setup, remove compatibility issues, and allow you to have better interchangeability if needing to physically move your network.
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