@Johnmac888 The extender is a Telstra smart wifi booster 3 (m35h-emr2) Last time I just connected the extender by cable to the modem then once blue light came on a took it to another room plugged it...

I have an iinet modem TP link VX420G2h modem and just cannot get any extender to connect. It connects when attached buy cabble but as soon as I discinnect and move to another space and plug tyhe...