To add to this Post there were no changes re the Network Shield. It now appears the situation was misleading as all further attempts to Update resulted in Cannot connect to Server with a Log error message. (How do I aatach this Clipboard File?)

However, if I then went to Start/Menu/Connect to Avast the Window cannot work Offline was displayed. On connect IE was run (I don’t normally use this Browser) and when this was connected I could then download the Updates.

Other programs update with the network sserver connected to the Internet, but I caanot find as to why this is a problem with Avast.

PeterQ