Sky Q wont stay connected to wifi

[PaulineW]

We recently installed new fibre broadband which has been working really well on everything except for Sky Q. We have one main box and 3 minis.

I have tried rebooting the router multiple times, resetting the network connection on the sky boxes, reconnecting all the sky q boxes and nothing has worked. 

The connection to broadband router is ticked but connection to Internet is not. When I go into the settings, the connection to Internet connects briefly and then drops again.

I would appreciate some help please.

[Stuartzz]

I have exactly the same issue it stays connected to the router but connects then disconnects from internet

Only have the one main Sky Q box