Issue with WiFi booster

[DuncanSandison]

Hi. My booster seems to have stopped working. The middle green light will not display despite holding reset for 10 seconds etc. I think it needs replacing. 
wifi in upper part if the house is very bad because booster not working / keeps dropping out. 

[Stellavision]

Did you try and connect the booster to the router after resetting? Ie press and hold the wps button on the booster until it flashes amber, then do the same on the router.

Ensure that the booster is not placed where the WiFi is weak, but somewhere halfway between there and your router.

If you still can't get it to work you will need to contact Sky to discuss your options. You may be able to have it replaced, or have an engineer visit, depending on your package.