Symptoms
- App can't find the plug during setup
- Plug's light doesn't blink to indicate pairing mode
- Setup process times out repeatedly
- Plug connects then immediately drops offline
Likely causes
- CommonNetwork is 5GHz-only or the wrong band was selectedMost smart plugs only support 2.4GHz Wi-Fi networks.
- CommonPlug not in pairing modeMost plugs need their button held for several seconds, or power cycled a few times, to enter setup mode.
- PossiblePhone connected to mobile data instead of home Wi-FiSetup apps generally require the phone to briefly join the same network as the plug.
- PossiblePlug too far from the router during setupA weak signal during the initial handshake causes repeated setup failures.
- Less commonRouter blocking new device connections (guest network isolation, MAC filtering)Certain router security settings can prevent new smart devices from completing setup.
What to do
- Hold the plug's button for the manufacturer's specified time (often 5–10 seconds) to enter pairing mode, or check for a blinking light pattern.
- Confirm your phone is on the 2.4GHz Wi-Fi network specifically, if your router shows both bands.
- Make sure the phone is on home Wi-Fi, not mobile data, during setup.
- Plug it into an outlet close to the router just for setup, then relocate afterward.
- Delete any failed device entry in the app before retrying setup.
- Restart the router and phone if setup keeps failing.
- Temporarily disable guest network isolation on the router if setup still fails.
When to call a pro
If a brand-new plug never enters pairing mode, it's likely defective and worth exchanging.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.