@Carl Case 2. If a customer changes the DNS Server on the WAN interface to a value that is conflict with the LAN IP address, the app won't give a remind but will change its LAN IP address...

@Carl I have exactly the same issue. Last 2 times I rebooted my Router node -- both times my network went from 192.168.1.1 to 172.16.0.1. One unique thing about my setup is that I run my own DNS...