EC200U-EU Modem Not Connecting with Jetson Orin Nano on Kernel 5.15.136-tegra

IoT Modules LTE Standard Module
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There is no need to use PPP or ModemManager.
All you need to do is use AT+QICSGP to configure APN once, AT+QNETDEVCTL to [auto] “dial” and setup a regular DHCP interface on your host system.