Internet not working - everything green/no setvice issues but "connected without internet"

[KHD3]

I have restarted the router several times to no avail, checked the hub and everything is telling me it's OK. 

Every light on the hub is green and the service checker says everything is OK and we have an Internet connection. 

0 devices are connected, even the devices plugged in via ethernet have no connection  

Absolutely stumped at this point. 

[Highlinder]

@KHD3  How long after the internet dropped did you run the service checker?

[KHD3]

It went down 2am this morning. I've checked then, when I posted this and just now and everything is supposedly OK on the service checker and all lights are on the hub still. 

But everything is connected but no Internet 😅

[Highlinder]

@KHD3  So all your devices are not able to connect to the internet? Have you re-started the hub after this happened or just left it as it is?