I have a Verizon ASK-NCM1100 5G Home Internet Router. How can I change the default LAN address (192.168.1.1) to a different subnet (i.e. 10.0.3.1)?
You can change the LAN IP Address, Start/End IP Address and DHCP Range from the router's local admin GUI page. Refer to the Support Page https://www.verizon.com/support/verizon-internet-gateway-ask-ncm1100/ where you can find the "User Guide" under ‘Additional support’ outlining the advanced features of the gateway.
6. To change DHCP Range, select ‘IPv4 Address Distribution' and select ‘Edit’
*Please be mindful that when changing these settings, it could make the gateway inaccessible.*