User manual

Table Of Contents
47
9 FAQ, Tips
This chapter provides a collection of frequently asked questions (FAQs) relating to Avira
AntiVir Professional, a troubleshooting section and tips and tricks for using Avira
AntiVir Professional.
see Chapter Troubleshooting
see Chapter Keyboard commands
see ChapterWindows Security Center
9.1 Troubleshooting
Here you will find information on causes and solutions of possible problems.
The error message The license file cannot be opened appears.
AntiVir MailGuard does not work.
There is no network connection available in a virtual machine (e.g. VMWare,
Virtual PC, ...) if Avira Firewall is installed on the host machine and the security
level of Avira Firewall is set to medium or high.
The Virtual Private Network (VPN) connection is blocked if the security level of
Avira Firewall is set to medium or high.
An email sent via a TSL connection has been blocked by MailGuard.
Webchat is not operational: Chat messages will not be displayed
The error message
The license file cannot be opened
appears.
Reason: The file is encrypted.
To activate the license, you do not need to open the file, but rather you save it in
the program directory of Avira AntiVir Professional. See also Avira AntiVir Professional
License administration.
The error message
Connection failed while downloading the file ...
appears
when attempting to start an update.
Reason: Your Internet connection is inactive. This is why Avira AntiVir Professional
cannot find the web server on the Internet.
Test whether other Internet services such as WWW or email work. If not,
reestablish the Internet connection.
Reason: The proxy server cannot be reached.
Check whether the login for the proxy server has changed and adapt it to your
configuration if necessary.
Reason: The update.exe file is not fully approved by your personal firewall.
Ensure that the update.exe file is fully approved by your personal firewall.