I trust this network

AVG Protection
4

Hi Laura,

We're glad to look into this & help you. 
Please clarify whether you receive any error message while changing the network from 'untrusted to trusted' or the change reverts itself to untrusted network.

1

Advanced firewall won’t save new trusted network 

2

Hi Laura,

We're glad to look into this & help you. 
Please clarify whether you receive any error message while changing the network from 'untrusted to trusted' or the change reverts itself to untrusted network.

3

Thank you for writing us back, Laura.
In this case we need to repair AVG, reboot the PC and check the issue using the below article.
(https://support.avg.com/SupportArticleView?l=en&urlName=repair-avg-antivirus&q=Repairing+AVG&supportType=home)
Thank you and keep us updated.