AVG Ultimate blocking Internet access

I have upgraded to AVG Ultimate. I can't access any web site or get emails unless I turn AVG off…

Hello Martin, 
Thank you for contacting AVG Community Support.
We are sorry to know that you are unable to access internet when AVG enabled. We'll certainly check and help you out.
The Enhanced Firewall feature in AVG Antivirus monitors the network traffic between your PC and the outside world to help protect you from unauthorized communication and intrusions. This feature is designed to require minimal input from you. To ensure you have protection, all you need to do is keep Enhanced Firewall enabled.
If you are unable access the internet, I request you check if the network is either trusted or untrusted by following the steps below:
-Open AVG Antivirus (https://support.avg.com/SupportArticleView?l=en&urlName=use-avg-antivirus-enhanced-firewall&q=network+rules&supportType=home) and select the Web & Email tile.
-Click Open above Enhanced Firewall.
-Select the Networks tab.
-Click Show settings next to the relevant network, then choose one of the following options:
I trust this network: The recommended option for a private network. When you select this option, the network is marked as a Trusted network.
I don't trust this network: The recommended option for a public network. When you select this option, the network is marked as an Untrusted network.
Each time you connect to this network, Enhanced Firewall applies the appropriate settings according to your preferences.
I request you select "I trust this network".
If you are still unable to access the internet, could you please provide me with more details about the situation, and I will do my best to help you resolve it efficiently.
May I know if you can use the internet when turn off Firewall in AVG Internet Security?
Are you using AVG Secure VPN in your device?
Did you have any other antivirus installed in your device?
Thank you and keep us updated.

Hello Martin, 
Thank you for contacting AVG Community Support.
We are sorry to know that you are unable to access internet when AVG enabled. We'll certainly check and help you out.
The Enhanced Firewall feature in AVG Antivirus monitors the network traffic between your PC and the outside world to help protect you from unauthorized communication and intrusions. This feature is designed to require minimal input from you. To ensure you have protection, all you need to do is keep Enhanced Firewall enabled.
If you are unable access the internet, I request you check if the network is either trusted or untrusted by following the steps below:
-Open AVG Antivirus (https://support.avg.com/SupportArticleView?l=en&urlName=use-avg-antivirus-enhanced-firewall&q=network+rules&supportType=home) and select the Web & Email tile.
-Click Open above Enhanced Firewall.
-Select the Networks tab.
-Click Show settings next to the relevant network, then choose one of the following options:
I trust this network: The recommended option for a private network. When you select this option, the network is marked as a Trusted network.
I don't trust this network: The recommended option for a public network. When you select this option, the network is marked as an Untrusted network.
Each time you connect to this network, Enhanced Firewall applies the appropriate settings according to your preferences.
I request you select "I trust this network".
If you are still unable to access the internet, could you please provide me with more details about the situation, and I will do my best to help you resolve it efficiently.
May I know if you can use the internet when turn off Firewall in AVG Internet Security?
Are you using AVG Secure VPN in your device?
Did you have any other antivirus installed in your device?
Thank you and keep us updated.