If setup fails or the Tapo D210 will not join your Wi-Fi, these are the checks from Tapo’s Wi-Fi setup guide. The same doorbell is also sold as the Tapo TD21, so these steps work for both.

What This Problem Means

The doorbell cannot finish setup, so it never appears in the Tapo app.

Common Symptoms

• “Unable to connect”, “Pairing failed” or “Failed to receive an IP address”
• Your Wi-Fi network is not listed
• The status light keeps blinking

Safe Checks You Can Try

1. Charge it first

Charge the doorbell fully before setting it up.

2. Check the network type

Tapo says its cameras cannot join an open (unencrypted) network or one with a sign-in page, such as some hotel or public Wi-Fi.

3. Check the Wi-Fi band

Tapo lists the Tapo D210 as 2.4GHz only, so it cannot join a 5GHz network. If your router uses one name for both bands, check the 2.4GHz band is switched on.

4. Prepare your phone

Turn off any VPN or filter app (Tapo names AdGuard, DuckDuckGo and NordVPN). On an iPhone or iPad, go to Settings > Tapo and turn on Local Network. Install the latest Tapo app and pick the right model and hardware version (on the label).

5. Stay close and check the password

Tapo says to keep your phone close to the doorbell with full Wi-Fi bars, check the Wi-Fi password, and put the doorbell near the router during setup.

6. Don’t use an extender for setup

Tapo says not to set it up through a range extender: use the main Wi-Fi. You can also test with a guest network or a mobile hotspot, and check your router’s maximum clients limit.

7. If your network is not listed

Tap Rescan. If your network name is hidden, choose Other Network and type it in. Tapo says the network must be encrypted and on 2.4GHz.

When To Contact Support

If none of these checks fix it, contact Tapo support through TP-Link’s UK support site. Have the model and hardware version ready: Tapo says both are on the label on the doorbell.

Last resort: factory reset. Check the installation guide for where the Reset button is on the Tapo D210; Tapo’s reset guide covers its cameras. You will then need to set it up again in the Tapo app. Removing it in the app (long-press its card, or Camera Settings > Remove) also resets it; Tapo says a Tapo Care plan stays on your account.