Cannot connect to server

For the last 2 days I have been getting the message

Information about current update:
Last encountered error: Can’t select any server for downloading (from 0).

Total time: 0 s

Think this has happened since the last update. I haven’t changed anything as far as I am aware. I have just added to windows firewall just in case it was that but it hasnt made a difference.

Any ideas?

See this thread http://forum.avast.com/index.php?topic=20905.0