Step 4. Configuring the proxy server settings
At this step, you can configure proxy server settings. The application uses these settings to connect to Kaspersky Lab update servers while updating application databases and to connect to Kaspersky Security Network.
If you want the application to connect to Kaspersky Lab servers via a proxy server, select the Use proxy server check box and specify the settings of the connection to the proxy server in the relevant fields: proxy server address and port. The default port number is 8080.
To use authentication on the proxy server that you have specified, select the Use authentication check box and enter the account credentials in the Account and Password fields. Use the 
button to select one of the existing accounts.