🚧 Put your gadgets on a guest network

September 22, 2026

Here’s the problem. Every gadget on your main Wi-Fi can see everything else on it. Your laptop. Your phone. The folder with your tax returns. A $29 smart plug sits at the same table as your bank login.

A guest network fixes that. It’s a second Wi-Fi your router knows how to make. Devices on it can reach the internet, but they can’t see anything on your main network. Your doorbell gets a room with a door that locks from the outside.

Takes about 20 minutes. Do it once, and you’re done.

Step 1: Get into your router

The easy way is your router’s app. Netgear uses the Nighthawk or Orbi app. Amazon uses the Eero app. Google uses the Google Home app. TP-Link uses Deco or Tether. ASUS uses the ASUS Router app.

No app? Flip the router over. The sticker has a web address (usually 192.168.1.1, 192.168.0.1 or 10.0.0.1) plus the admin username and password. Type the address into any browser on a device connected to your Wi-Fi.

FYI, if you’ve never changed that admin password from what’s on the sticker, change it while you’re in there. That’s the password to the whole house.

Step 2: Turn on the guest network

Every brand hides it somewhere a little different:

• Netgear Nighthawk app: Tap the Guest Wi-Fi tile, pick a band, flip Guest Wi-Fi Enabled on.
• Eero app: Settings > Guest Wi-Fi network > toggle Enable guest network > Save.
• Google Home app: Wi-Fi > Network settings > Guest network > toggle on.
• TP-Link: Advanced > Guest Network, then enable it.
• ASUS app: Settings > Wi-Fi > Wireless Settings > Guest Network, tap the plus sign.

Heads up, Xfinity customers. The rented xFi gateway doesn’t offer a private guest network. That “xfinitywifi” signal is a public hotspot for other Xfinity customers, not a room for your gadgets. 

You’ll need your own router (see my picks) to do this right.

Step 3: Name it and lock it

Name the network something obvious like “Gadgets.” (Not “Guest,” or you’ll forget what it’s for by Christmas.)

Give it a long password. 15 characters or more. You’ll type it maybe once per device, then never again, so make it a beast.

Look for a setting called “Allow guests to see each other,” “Access my local network” or “Client isolation.” Set it so guests can’t see each other and can’t reach the main network. Some routers do this automatically. Some need you to flip it. This one setting is the entire point.

Step 4: Move the gadgets over

Here’s the list. Cameras, doorbells, smart speakers, smart plugs, robot vacuums, TVs, streaming sticks, thermostats, smart bulbs, baby monitors, pet feeders, the fridge that has a screen for no reason.

For each one, open its app, go to the Wi-Fi settings and join the new “Gadgets” network. Most apps call it “Change Wi-Fi” or “Network settings.” A few stubborn ones make you remove the device and set it up again from scratch. Annoying, but it’s five minutes.

Two gotchas. Smart speakers that control your lights need to be on the same network as the lights, so move them together. And if you cast or AirPlay from your phone to your TV, that stops working when the TV is on one network and your phone is on the other. Either move your phone to “Gadgets” when you want to cast, or leave that one TV on the main network. Your call.

Step 5: Humans stay put

Laptops, phones, tablets and your printer stay on the main network. (Printers get weird across networks. Leave them.) Your work computer, definitely main.

If your kids have a gaming console, that’s a judgment call. Consoles are patched often and aren’t the problem. I’d leave them on main.

Step 6: Break up with the old network

Go back into each gadget’s app and make sure it forgot the main Wi-Fi. If a device remembers both, it’ll jump back to the main network the moment the guest one hiccups. Then you’re right back where you started and don’t know it.

Step 7: Test it

Open your router’s app and look at the device list. Everything with a plug or a lens should show under the guest network. Anything with a keyboard should show under main. If a camera is sitting on the main network, go move it.

Do this check every few months. New gadgets show up. Birthdays happen.

🔒 Three more minutes while you’re in there

Update the router’s firmware. There’s usually a Check for Updates button in the app.

Turn off WPS, that push-button pairing feature. It’s a known weak spot.

Turn off remote management unless you log into your router from outside your house. You don’t.

Now a rogue gadget is locked in a room with nothing worth stealing. It can phone home all it wants. It just can’t take your stuff with it.

I got a new dual-band router, and I’m not sure it’s working. It keeps giving me mixed signals.