The integrated update is not working. Are there any solutions for this?FAQ #010
The main reason for this problem is that you need to use a proxy server to access the internet. In that case, the proxy server is already set up in your browser, where you can look up it's settings and enter them into Spybot-S&D.

In Mozilla, you can find the Proxy settings if you open the Edit menu, choose Settings... at the bottom, and navigate to the section Advanced - Proxies.
In Internet Explorer, see the Menu Extras - Internet options, go to the tab Connections and click the LAN Settings button at the bottom.

Back inside Spybot-S&D you need to go to the settings page, and scroll down to the entry Automation - Web update - Use proxy to connect to update server. Now check the box below it, and a dialog will appear where you can enter your proxy settings.
The format is host:port (the host is the name, the port the number you found in your browser).