I have 2 existing 600 extenders which work fine. I have now bought an extender and hotspot pair ( I only need the hotspot) because I want to have Wi-Fi in a separate garage which is on the same ring main. I can set up the hotspot near to the existing extender but when I move it the link drops or only works intermittently. I know the circuit works because if I plug in the new spare extender in the garage it works fine. That's not the point though, I need a wireless extension not a wired extension. I have tried all of the various procedures suggested by BT.