Hi, Dunco1,
Welcome to the Virgin Community!
How is your connection since your last post? Is it all good now?
Now, if you are using the Hub 3 the flashing green base light and the the WiFi light that is green means that the Hub 3 is disconnected from network connections. You'll need to check if your cable connection to the Hub is tight and that no other cable connection in the home has come loose. If you find a loose connection, reconnect it tightly, and then reboot the Hub.
This is a good reference about the status lights and what it means that you can use in the future.
Since it could also be a network issue, you can check here if there's any fault on the area.
Hope this helps.
Mia_C