According to Aaron Maben, when we’re talking about the different wireless technologies that are being used for wide area networks,
The R1900 Mobile should be installed by a professional antenna installer like ACS. For more information though, please see the
Setup Check box for content. Open the SIM cover. Insert an active 2FF-sized SIM. Close and secure the SIM slot
Use the following checklist when troubleshooting modem connectivity issues. Verify you are using the most recent version of NetCloud OS
View this troubleshooting guide that’s intended to resolve basic connectivity issues with your NetCloud Perimeter network on a host computer.
Cradlepoint has a great Quick Start Guide at https://customer.cradlepoint.com/s/article/COR-IBR600C-Series-Quick-Start-Guide