FAQ

If the Cybersitter application is installed and you are having problems updating AVG, you need to add the following names of our update servers to the list of allowed addresses within the Cybersitter program:

• update.avg.com
• backup.avg.cz
• akamai.avg.com

AVG update should then proceed without problems. If any problem persists, please contact our technical support. Thank you.

If you try to update AVG and the error Update failed. Connection with update server has failed. is displayed, it can be caused by one of the following reasons:

Connection to AVG update servers is blocked
In case you are using any Firewall or Content filtering applicaiton, please make sure that it is not preventing AVG from connecting to Internet. If you are using Windows Firewall, AVG will allow itself automatically during the instalaltion, however this is not possible for all other Firewall or Content filtering solutions. You can temporarily disable any such program to verify whether it is affecting AVG, or add AVG files and servers to its exceptions. The list of files used by AVG, and servers to which is AVG connecting are available in FAQ topic 1216.

Your Internet connection is not fully functional
Your Internet connection to AVG update servers may stop working in some cases, although standard Internet browsing works correctly. Proceed as follows to rectify such situation:

• Open menu Start -> (Settings) -> Control Panel.
• Double-click on Network connections.
• Right-click on Local area connection and select Repair.
• Try to update AVG.

Your Internet settings are not correct
Even if your Internet connection is working correctly, incorrect DNS servers may be filled in, affecting AVG update. This can be caused e.g. by some virus that was previously on your computer.

• Open menu Start -> (Settings) -> Control Panel.
• Double-click on Network connections.
• Right-click on the connection you are using and choose Properties.
• Double-click on Internet Protocol (TCP/IP) item on the General tab.
• Please check (and modify if necessary) the settings of IP address and DNS servers according to your Internet Provider settings or choose the "Obtain DNS server address automatically" option.
• Confirm the settings by clicking on the OK button.
• Close the window.

You are using dial-up connection
In case you are using dial-up connection, you should configure AVG to use this connection.

• Open AVG by double-click on AVG icon your Desktop, or in system tray.
• Open menu Tools -> Advanced settings -> Update -> Dial-up.
• Tick the option Use dial-up connections.
• Save the settings using OK button and try to update again.