It seems the Avast streaming servers are down, as I've also not received streaming updates since 5:06 PM April 30.
With nothing else running that would access the internet, TCPview shows AvastSvc.exe connecting to r-062-042-234-077.ff.avast.com which I am guessing is an attempt by Avast to retrieve streaming updates, or check for VPS updates. This shows up with no other connections showing in TCPview