Does wifi baby monitor work when broadband goes down uk

Is a broadband outage the same as the Wi-Fi dying?

No. In a typical Virgin Media or Openreach fault the internet path to the outside world drops while the router can still hand out a local network. Phones in the house still show the Wi-Fi name; websites fail. A camera that only needs that local network can keep a picture. A camera that must sign in to the maker's cloud cannot.

The Lullaby Trust's monitor FAQ is brief on this: movement monitors do not rely on Wi-Fi; some other monitors do, and those are not the sets used on their CONI programme. Which? describes a smart video monitor as a camera plus an app that you use "as long as you have a good wi-fi connection" — it does not spell out LAN versus cloud. That split is what you have to read from your own manual.

This page is the 3am outage: router lights still on, ISP dead. It is not a buying guide for homes with no broadband at all. A dedicated radio parent unit is the set that never asks that question.

Which path does my monitor use — local Wi-Fi, cloud, or its own radio?

Find the sentence in the UK manual or the in-app setting that names local viewing, LAN, or a hardware Wi-Fi switch. Then match it to the outage.

How do I test this before the next outage?

Do it on a Saturday afternoon, not at 3am. You are checking which picture survives when the internet path is cut.

1. 1
   Note the router's lights in a working state Broadband / WAN / internet LED on is the usual "ISP is up" mark. The Wi-Fi LEDs can stay on during an ISP fault.
2. 2
   Open the live feed you actually use at night Parent unit, phone app, or both. Leave them running.
3. 3
   Pull the WAN lead or use the ISP's "internet off" test if they offer one Leave the router powered. Do not pull the 12V brick — that is a power cut, a different test. The phone should keep the Wi-Fi ticks but lose the web.
4. 4
   Watch each feed for two minutes Handheld still live? Local app still live? Cloud app showing a spinner or "no internet"? Write down which of the three happened. That is your outage map.
5. 5
   If the app dies and you have a hardware Wi-Fi switch eufy's UK FAQ: switch off to keep the camera on the monitor only. Other hybrids have a privacy or local-only toggle. Learn where it is while the lights still work.
6. 6
   Restore the WAN lead and confirm the app returns Some cloud cameras need a minute to re-register. If it never comes back, check the maker's outage status page before you factory-reset.

What if the router dies in a power cut as well?

Then there is no local Wi-Fi either. Cloud apps and LAN apps both stop. A battery parent unit that talks straight to a battery camera keeps a picture until those cells empty. Which? found video parent units averaging about 7 hours in 2019 tests; one current UK battery-camera FAQ publishes about 9 hours and about 5.5 hours with night vision. A mains-only smart camera on a shelf goes dark with the lights.

• ISP fault, router on: test LAN versus cloud (the drill above).
• Power cut: only the radio handheld plus battery camera still has a path. Plug-in cameras and the router are off.
• Mesh node in the nursery died, main router lives: the camera may roam badly or drop. That looks like an outage and is a Wi-Fi coverage problem.

The Lullaby Trust says a monitor is not a substitute for an adult in the room for the first six months. An outage is a reason to sit in the same room, not a reason to keep refreshing an app that cannot reach the cloud.

What alerts disappear when the internet path dies?

Even when a local picture survives, cloud features often do not. Expect to lose:

1. Push notifications to a phone that is on mobile data outside the house.
2. Remote viewing for a grandparent who is not on your Wi-Fi.
3. Cloud clips, sleep "insights" and any feature the manual says needs an account online.
4. Two-factor prompts that cannot reach the maker's login page — you may be locked out of the app until the ISP returns, even if local view would have worked.

Nanit's published "Local WiFi-Only Access" flag is the other direction: it stops a viewer seeing the stream once they leave the house Wi-Fi. That is a privacy control, not an outage fix, but it shows the same split — home network versus the internet.

In short

In shortRouter lights on and websites down: a local-view or dedicated handheld can still show the room; a cloud-only app cannot. Router off: only a battery radio link remains. Read the manual for LAN or a Wi-Fi switch, then pull the WAN lead once so you know which of those sentences is yours. The Lullaby Trust already told you some monitors need Wi-Fi and some do not.