Unable to connect to update server

I've been trying to update the free version of AVG antivirus, but get a message that the software is unable to connect to the update server.  I followed the steps in the FAQ, but have not been able to resolve the problem.  I can confirm that the internet connection on that computer is working properly.

Adam, Have you tried this?.. Have a look @ this article (http://avgclick.me/UpdateAVG) [B. Updating AVG offline]. AVG Free… Use the update files from this webpage (http://free.avg.com/ww-en/download-update).
AVG Guru

Adam, Have you tried this?.. Have a look @ this article (http://avgclick.me/UpdateAVG) [B. Updating AVG offline]. AVG Free… Use the update files from this webpage (http://free.avg.com/ww-en/download-update).
AVG Guru