Companion doesn't see the Satellite surface when IP changes

[MeestorX]

If Satellite is connected, Companion can show 2 IP addresses for satellite if it's reachable via more than one network route (e.g. LAN and WiFi). If the Satellite changes connection and IP, the SD screen connected to Satellite goes to "Connecting" and then "Connected", but does not show the Companion Buttons interface. It only shows the Companion buttons after you either disconnect and reconnect the SD from it's USB, or restart Companion. Doing either procedure, immediately the Companion buttons show again on the Satellite SD.
When the SD is in this state (connected but not showing the Companion buttons), "Rescan USB" in either Companion's WebUI or Satellite's WebUI does not fix the problem.