Also if you are still within the return period for the wifi extender and if you are open to considering other options of improving wi-fi signal around the house, I recommend a powerline adapter, this uses the electrical wiring in your house. The adapter has a port to make an Ethernet connection in addition to the ability to transform into a wi-fi hotspot.
Powerline adapters are generally seen to be more effective in getting a good signal around the house. Not saying this canβt be done with a wifi repeater, but experimentation and investigation is required with regards to the ideal placement of the wifi extender.