I thought I was buying an outdoor extender, but I suspect that's not exactly what this is.  It appears that first I have to connect a LAN cable, then all kinds of programming?  I've spent all afternoon downloading phone app, laptop controller program, watching online videos, trying to get this thing to work and I'm certainly not running a cable from the house to the barn.  I think I bought the wrong thing, but I'm clueless.  I have a TP-Link extender for the upstairs of the house and it was so simple.  All I want is for it to pick up my router WiFi signal from the house at my barn and send the signal to the back yard.  This doesn't seem to do that.  Help! 

Joe