Hi there. We have recently had fibre installed. The range of the new modem is less than the old one, so I would like to connect a wifi extender (by wifi). I have tried two extenders and neither can connect to the modem. Instructions have been followed to the letter and range isn't an issue as they wouldn't hook up when side by side. The wps button doesn't have a light to show its working, so I'm guessing it is. Any sugestions would be welcome. Thanks!