@Jacxl2b1 

It sounds like you are trying to do what is called daisy chaining.  What Daisy Chaining means is you are trying to connect 1 Range Extender to another.  While in practice this is possible, in reality it should not be attempted.  This article explains how range extender works.  https://community.tp-link.com/us/home/forum/topic/150611?page=1

If you add a 2nd range extender into the this chain you will further add delay and reduce speed.  If you want to use two range extenders it is best to have the router centerally located and Range Extenders in oposite ends of the home.  

Another option for you might be Powerline Adapters.  With that you plug one unit into the wall and connect it to your router via ethernet.  Then another unit in a remote location.  The devcies will use your Powerlines to trasnfer the signal vs a wireless relay.  Usually this is a faster more stable connection than Range Extenders.  

Best Regards