Hi，

1. Ensure that your device has connected to the router

2. Open a web browser and enter 192.168.0.1 or tplinkwifi.net in the address bar and give it a go.

3. Otherwise, please check the default gateway of your device and use it to access the internet: https://www.tp-link.com/en/faq-838.html

4. Meanwhile, you can use different web browser and devices to access.

5. Besides, you can try to reset the router and login with the default username and password.

Here is an instruction you can refer to: https://www.tp-link.com/en/faq-2236.html 

Good day.

Alfredtorres456 wrote

I can not access my administrator, so I can not control my router

Hello,

If you can't access your device with username and password then there is an option of reset

Via that you first reset your device and then you access with your default username and password.

Then you go to your default gateway and change your device password there.

Hope this will help you.

Regards 

Afflospark