Vivi units expose a wireless access point for ten minutes after powering on or rebooting. If you cannot connect to the web console over the network - this is the only way you can access the console.
- Connect to the Vivi's temporary Wi-Fi hotspot, which will have a name like "Vivi-000000"
- Open a browser and enter the address http://192.168.123.1
- Username: admin; Password: v!v!adm!n