Firewall is not working

Hello Matthias, Please have a look at this article http://avgread.me/1cgDhdU to enable your AVG Firewall. Please be informed that you will receive some advertisement popups if some adware programs installed on your computer unknowingly while you try to install any other programs. You can remove this easily, first go to control panel and click on Programs and Features and in the list of programs search for any tool bar or search bar or any weird programs installed in your computer. If you see some suspicious program just uninstall it.

Hello Matthias, Please have a look at this article http://avgread.me/1cgDhdU to enable your AVG Firewall. Please be informed that you will receive some advertisement popups if some adware programs installed on your computer unknowingly while you try to install any other programs. You can remove this easily, first go to control panel and click on Programs and Features and in the list of programs search for any tool bar or search bar or any weird programs installed in your computer. If you see some suspicious program just uninstall it.

I have recently bought AVG pro, after a free trial period. During the trial, everything worked perfect, but since i bought the product and installed it, the firewall does not work.
All kinds of popup ads are constantly annoying my surfing on the internet. What did I do wrong?
Can you help me?