Why does my eufy security camera disappear from the app?

The short answer

Your phone finds the homebase locally, so isolation settings can hide it. The gadget is usually still online. What's broken is your phone's ability to see it, and that is a network setting rather than a fault with the device.

What's happening underneath

Low dependency. Live view goes out to the cloud and back, so blocked local chatter rarely breaks it — but local-only recording features do need the phone and camera on the same network.

Source: Manufacturer documentation

Try these, in this order

• • Put your phone on the same Wi-Fi name as the homebase, not the guest network.
• • Plug the homebase into the router with a cable if it sits close by.
• • Turn off 'client isolation' or 'AP isolation' on the router.
• • Use one Wi-Fi name for both bands rather than two separate names.
• • Check the signal where the gadget actually lives, not where you're standing.
• • Move the router off the floor and out of any cupboard before buying anything.
• • Put the gadget and your phone on the same Wi-Fi name.

Setting it up again properly

• • Stand next to your router while you set it up, then move the gadget to where it lives.
• • Put your phone on the 2.4 GHz network name for the setup, or use one name for both bands so the phone can follow.
• • If your router splits bands into two names, turn the 5 GHz one off for five minutes rather than fighting it.
• • Turn mobile data off on your phone during setup — some apps quietly use it and never find the gadget.

When it's worth spending money

Rarely needed. A cable to the homebase fixes most homes for a few pounds.