Hello David,
Thank you for reaching AVG Support Community.
We sincerely apologize for the difficulties you are currently experiencing.
We're glad to look into this and help you.
I request you to follow the below steps and let us know the status.
- Open the AVG Internet Security > Click on the Hacker attacks tile > Firewall options > Network profiles > make sure your Wireless network and a wireless printer are selected as a private connection.
- On the Network profiles, select the policies on the right > Enable the "Internet sharing mode" > Select "System rules" > Enable all the system rules
If you face any technical difficulties or need more assistance, feel free to reach us.
Thank you for your understanding.