Uh oh... You are NOT supposed to mess with the disabled Windows Firewall. It is supposed to stay disabled. Why are you trying to enable it? You will NOT fix your networking problems by running two firewalls at the same time, the only thing you will achieve is creating even a bigger mess.
If you want to use the firewall provided by AIS, then you need to configure the firewall via the Avast GUI, not by going to Windows control panel and messing with the disabled ("blocked") Windows Firewall. If the product is way over your head, stick with a simpler one (avast Free/avast PRO), or kindly read the documentation and get some basic grip of what you are doing and how's it supposed to work. Or use the custom install option and deselect the firewall component. Instead of blindly clicking on Yes/Next.