If setup fails or the Tapo L900-10 will not join your Wi-Fi, these are the checks from Tapo’s own setup guides.

What This Problem Means

The Tapo L900-10 cannot finish setup, so it does not appear in the Tapo app.

Common Symptoms

• Setup fails partway
• Your network is not listed
• The device is not found

Safe Checks You Can Try

1. Use 2.4GHz Wi-Fi

Tapo’s setup guide says its smart devices do not support 5GHz Wi-Fi. Make sure your router’s 2.4GHz band is on. If your network name is hidden, choose Other and type it in; otherwise tap Rescan.

2. Prepare your phone

Pick the right model in the Tapo app. On an iPhone, turn on Local Network for Tapo. Keep the phone next to the Tapo L900-10, with the VPN and mobile data off.

3. Join the device’s Wi-Fi

For Wi-Fi setup, Tapo says to join the device’s own network (Tapo_xxxx_xxxx) when asked. On an iPhone, “No Internet Connection” is normal; on Android, choose to connect anyway.

4. If it uses Bluetooth setup

Tapo says Bluetooth models need the device powered with its light on, the phone close by, and Bluetooth turned off and on again. Restart the device if it is not found.

5. Check the password and limits

Check you have chosen the right network and password, and that the router has not reached its maximum number of clients, which Tapo says is common on guest networks.

6. Reset and try again

Reset the Tapo L900-10 (see our reset guide below) and run setup again.

When To Contact Support

If none of these checks fix it, contact Tapo support through TP-Link’s UK support site, with the model and hardware version from the label on the device.