Google’s mesh Wi-Fi systems, Google Wifi, Nest Wifi, and Nest Wifi Pro, replace or work alongside your current router to cover your whole home with one network. Setup happens entirely in the Google Home app, which replaced the old Google Wifi app. This beginner’s guide walks through what you need, how to set up the main router and extra points, and how to fix the most common setup problems.
Quick answer
Connect the main Google or Nest Wifi unit to your modem with the included Ethernet cable and plug it in. When the light pulses, open the Google Home app, tap Add (+) > Device, scan the QR code on the bottom of the unit, and follow the prompts to name your network and set a password. Then add any extra points the same way.
What you need
- Your Google Wifi, Nest Wifi, or Nest Wifi Pro units and their power adapters.
- A working modem and internet service.
- The Ethernet cable that came in the box.
- A phone or tablet with the latest Google Home app and Bluetooth turned on.
- A Google account.
Step 1: Connect the main router
- Pick a spot near your modem, ideally out in the open and off the floor. Avoid cabinets and closets.
- Plug one end of the Ethernet cable into the modem and the other into the WAN port on the Wifi unit. On Google Wifi, it’s marked with a globe icon.
- Plug the unit into power and wait about a minute. The light pulses when it’s ready to set up.
If you’re replacing an old router, unplug it and connect the Google unit to the modem in its place. Restart the modem too, since some modems need a reboot to recognize a new router.
Step 2: Set it up in the Google Home app
- Open the Google Home app and sign in.
- Create a home or choose an existing one.
- Tap Add (+) > Device, then choose the option for a Google Nest or partner device.
- When asked, scan the QR code on the bottom of the router. If scanning doesn’t work, you can type in the setup key printed under the code.
- Choose the room where the router sits.
- Create a network name and password. If you’re replacing an old router, using the same name and password lets your devices reconnect automatically.
- Wait while the app finishes setup and checks for updates.
Step 3: Add more Wifi points
Extra points spread the signal to the far corners of your home.
- Place each point about halfway between the router and the area with weak signal, no more than two rooms away from another unit.
- Plug it in and wait for the light.
- In the Google Home app, tap Add > Device and scan the point’s QR code.
- Choose its room. The app runs a mesh test to check the connection between units.
If the mesh test says a connection is weak, move the point closer to the router and run the test again.
Placement tips
- Keep units off the floor and away from thick walls, mirrors, aquariums, and metal furniture.
- Avoid placing them next to microwaves, cordless phone bases, or baby monitors.
- For multi-story homes, place points on each floor rather than stacking them all on one level.
- If your home has Ethernet wiring, connecting points by cable gives the fastest, most reliable connection.
Useful settings after setup
- Guest network: Create a separate network for visitors so they don’t have access to your devices.
- Family Wi-Fi: Pause internet access or set schedules for kids’ devices.
- Device priority: Give one device, like a work laptop, priority for a few hours.
You’ll find these in the Google Home app under your Wi-Fi settings.
Setup troubleshooting
- The app can’t find the device: Turn on Bluetooth and location on your phone, stay close to the unit, and restart the app.
- No internet during setup: Restart the modem, check the cable is in the WAN port, and confirm your internet service works by connecting a computer directly to the modem.
- Double NAT warning: If you kept your internet provider’s router, it and your Google router both act as routers. Put the provider’s device in bridge mode, or ask your provider to help.
- Still stuck: Factory reset the unit by holding the reset button on the back until the light changes, then start setup again.
Have other Google Home devices? If you changed your network name or password, see how to connect Google Home to a new Wi-Fi network.
Related: How to transfer Google Home to another account.
Related: Reset a Google Home Mini or Nest Mini.
Frequently asked questions
Can I still use the Google Wifi app?
No. Google moved Wi-Fi setup and management into the Google Home app, which works with Google Wifi, Nest Wifi, and Nest Wifi Pro.
Can I mix Google Wifi and Nest Wifi units?
Google Wifi and Nest Wifi units can work together in one network. Nest Wifi Pro uses Wi-Fi 6E and only works with other Nest Wifi Pro units.
How many points do I need?
Smaller homes and apartments often need just the router. Larger or multi-story homes usually do well with one or two extra points.

Kermit Matthews runs Live2Tech from just outside Philadelphia. He is an IT specialist with over 20 years of experience, from a university help desk to small-business IT, IT management and his own consulting practice, and has written tech guides full time since 2020. Steps are checked against the current software on a real device or the maker’s official documentation. More about Kermit.