@Haydeelopez1980 

Welcome to the community.

To better help you, can you share a bit more info about your network setup and what you are having trouble with?

For example:

1. What is the model number of your Wi-Fi router and Range Extender? You can usually find this on each device's label.

2. Which setup method(s) did you attempt when trying to install the extender? WPS, Web GUI, Tether App?

If you would prefer live support, you can always get in touch with our support team via phone or live chat here: TP-Link - Contact Technical Support