Check the extender and router first
Write down your router WiFi name and password, and check that the extender is powered on near the router for setup. Confirm its model and hardware version so you can follow the matching TP-Link instructions.
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Guide
Connect a compatible TP-Link extender with WPS or the Tether app, then move it where it still receives a strong router signal. Follow the model-specific guide if its controls differ.

Write down your router WiFi name and password, and check that the extender is powered on near the router for setup. Confirm its model and hardware version so you can follow the matching TP-Link instructions.
Press WPS on the router, then press the extender WPS button within the interval stated in its guide. Wait for the connection indicator to settle; button timing and LED meanings vary by model. If pairing fails or WPS is unavailable, use app or browser setup.
Install the official TP-Link Tether app, connect your phone to the extender setup network if prompted, and follow the steps to choose your home network and enter its password. Keep the phone near the extender during configuration.
Connect to the extender setup network and open the management address printed in its quick installation guide. Sign in as instructed, select the router network and enter its password. The local address and credentials can differ by model.
After setup, place the extender where it can still receive a reliable signal from the router while reaching the weak area. Use its signal indicator or Tether app where available. A spot inside the dead zone may be too far away to relay a useful connection.
Check the WiFi password, restart both devices, and repeat setup closer to the router. If the extender broadcasts a separate network name, connect to that name while testing. Reset only if needed, then configure it again using model-specific instructions.
Common questions
Yes. TP-Link setup materials describe app and web configuration for supported models. Use the Tether app or the setup address and steps in your model guide.
Common causes include an incorrect password, weak router signal during pairing, or a setup method that differs by model. Retry near the router, verify the credentials and use the exact model guide.
That depends on the model and configuration. Some setups let you choose the extended network name; mesh features such as EasyMesh or OneMesh require compatible equipment and may use a unified name.
Place it between the router and the weak coverage area, where it can still receive a good router signal. Follow device indicators and avoid blocking its ventilation.