If your eufy robot vacuum won’t join your Wi-Fi, or the eufy app can’t find it, these are the checks from eufy’s manuals for the Omni S2, S1 Pro, X10 Pro Omni, E35, E28, E25, C28, C30, C30 Edge, C20 and Robot Vacuum C10.

What This Problem Means

The robot can’t join your home Wi-Fi, or has dropped off it, so the eufy app can’t start a clean, show the map or change settings. eufy’s robots are added in the eufy app (the S1 Pro and C10 manuals and some of eufy’s UK pages call it the eufy Clean app). The manuals for the S2, S1 Pro, X10 Pro Omni, E35, C30, C30 Edge, C20 and Robot Vacuum C10 say setup uses Bluetooth first, and the app offers a hotspot (AP) method if that fails.

Common Symptoms

• Setup in the eufy app fails or can’t find the robot
• The app shows the robot as offline
• On the Omni S1 Pro, the Wi-Fi light under the magnetic cover keeps flashing

Safe Checks You Can Try

1. Use your 2.4GHz network

eufy’s manuals for the Omni S2, S1 Pro, X10 Pro Omni, E35, C28, C30, C30 Edge, C20 and Robot Vacuum C10 all give 2.4GHz as the Wi-Fi band (the E28 and E25 manuals don’t give a band). If your router shows separate 2.4GHz and 5GHz names, choose the 2.4GHz one.

The S1 Pro manual adds that a dual-band 2.4/5GHz router is fine, and lists “Robot is connected to a 5G network instead of a 2.4G network” as a cause of a failed connection.

2. Check your router settings

eufy’s C28 and S1 Pro manuals say not to use a VPN or proxy server, and that the Wi-Fi name can’t contain special characters. The S1 Pro manual adds: don’t connect to a hidden network; use WPA or WPA2 security (WPA3 and WEP EAP aren’t supported, so switch a WPA3 router to WPA2); the router must support 802.11b/g/n and IPv4; an extender or repeater must use the same network name and password as the main router; and turn off any whitelist mode on the router while you add the robot.

3. Check the password and your phone

The S1 Pro manual says to check the Wi-Fi name and password, including upper and lower case, and to make sure your phone is connected to your home Wi-Fi before you add the robot again. The manuals also give minimum phone versions: iOS 11 or Android 8 for the X10 Pro Omni, E35, C20 and C10, iOS 12 or Android 7 for the S1 Pro, and iOS 13 or Android 8 for the C30 and C30 Edge. The S1 Pro manual asks you to turn on Bluetooth on your phone, as setup starts over Bluetooth.

4. Reset the robot’s Wi-Fi and add it again

If you have trouble connecting, eufy’s manuals say to reset the robot’s Wi-Fi. Press or hold the buttons shown in the table below until you hear the voice prompt, then follow the instructions in the eufy app to set up the connection again. In the app, tap + (or Add Device) to add the robot.

5. Get a stronger signal

Every manual says to put the station where the Wi-Fi signal is strong. The S1 Pro manual also says to check your router’s internet connection, and to test the network by opening other apps on a phone connected to the same Wi-Fi; if it is poor, switch to a more reliable network.

6. If the robot keeps going offline

For the Omni S1 Pro, the manual’s FAQ says to pull down to refresh the app, then open the magnetic cover: if the Wi-Fi light is flashing white, reset the Wi-Fi. Check the power switch under the cover is on I, then put the robot back on the station and check the screen shows Charging. If it is still offline, move the power switch to O, wait 3 minutes and switch it back to I.

How to reset the Wi-Fi on each model

On the Omni C28, C30 and C30 Edge, eufy says the child lock doesn’t block the Wi-Fi reset or the factory reset.

When To Contact Support

If none of these checks fix it, contact eufy at support@eufy.com or through eufy’s support site, with your robot’s model. eufy’s UK phone number, printed in most of its manuals, is +44 (0) 1604 936 200.