Here is the correct method (ignore everything above) - 1. Connect your Sagemcom Fast 5866T router as per instructions. 2. Using Google Home app, factory reset your Google Nest router (select Devices -> select the router -> select the Settings wheel -> select Factory reset network at bottom). 3. Connect the Sagemcom Fast 5866T router (select LAN outlet) to the Google Nest router (select WAN port  ) using the LAN connection cable provided. 4. Add the Google Nest router as new device in Google Home app (select Devices -> + Add). 5. You're good to go with two wifi connection points. ... View more