I am trying Avast 4 before upgrading to professional. I cannot update the definitions. I had the same problem with Kaspersky as far as network error, but they have a known problem in some instances. I am on modem, and am connected to the Internet but get the message cannot connect to server and then the message
you are not connected to the Internet.
- your firewall does not allow the program "avast*.setup" to access the Internet; you can find details in help or read the FAQ section on avast! website.
- your HTTP proxy settings are incorrect.
- the server is inaccessible because of a network error or maintenance.
I listed as exception avast, and when i tried to get avast.ini file to check settings in Notepad, i can only find and avast.int file. For some reason, whenever I turn on computer Firewall is turned off (this was pre installation) but avast is added as an exception. Is there someway I can manually download updagted definitions to make sure a virus is not causing this? What else can I do?