Your MiFi X PRO 5G has two Wi-Fi networks, primary and guest, and lets you connect up to 32 Wi-Fi capable devices. For added security, share your guest network instead of your primary network.
The guest network is off by default. You can turn it on from either the touchscreen or the Admin web UI by assigning it a band in Wi-Fi Settings > Band Selection.
The Ethernet port is disabled by default to extend battery life. You can enable it from the touchscreen (Menu > Settings), or from the Admin web UI (Settings > Preferences).