Hello @giang2408202 ,

Welcome to our community.

It seems that you have forgotten the password to access your TP-Link device. If you are trying to connect to WiFi and it asks for a password (also called a security key), please follow these steps:

1) Check the default WiFi password: Look for the default password or PIN on the bottom label of your TP-Link device. This is usually an 8-digit number and serves as the security key for your wireless network.

2) If you have changed the password and forgotten it: You will need to perform a hard reset on your TP-Link device. After resetting, you can use the default password found on the device label to reconnect.