Hello,
Main WAN -> Wifi (Hotspot)
Backup WAN -> Mobile (4G)
Only Mobile the connection are Ok. I connect the wifi the connection ist ok.
But when the wifi disconnect, the Router will be still. No Wifi from RUT850 for local connection.
Workaround is factory Reset or Wifi Connect.
Router RUT850
Firmware: RUT850_R_00.01.03.4