WiFi not working from Router to home devices

[Carey4]

Hi

i hage done a check and seems Sky is fine in the area but the there is no connection from Router to home devices. 

what can I check?

[JimM1]

@Carey4 Do you see anything! Link below.

This link providers information about the coloured lights on the various hubs
https://www.sky.com/help/articles/hub-lights-explained-start