Verizon LTE Internet and Home Phone - Wi-Fi Security Settings
The former name of this device is the Verizon 4G LTE Broadband Router with Voice.
Access the router configuration console then click Customize my Wi-Fi Settings (located just below "Manage My LTE Internet and Home Phone").
For assistance with accessing the router configuration page, refer to Accessing the Router Configuration.
From the Wi-Fi Profile tab, adjust as desired then click Save Changes.