I got given some range extenders from family 

Tl wa855re 

they wont even see my wifi, i have scanned on both my phone and pc using the site and the app and it just will not see my home wifi i got them to link once and the it seemed to lose it, i have no clue why i cant even make it link by force.

i have reset them both using the button on the booster and in software 

i have also updated it to the newst update as well as add the mac adress to my router