Trusted Networks

Hello Catherine. 
Thank you for contacting AVG Support Community. 
We're sorry to hear that you're facing this trouble. 
We will check and help you further. 
If your PC is connected to an untrusted network, some of the personal applications or connections will not work in order to protect your PC. Because hackers may get into your PC via untrusted networks. So the screen mirroring failed to work before, After that, you changed the network profile to 'I trust this network' which means AVG considered your current network as trusted one so it allowed screen mirroring. 
We request you to repair AVG Internet Security and check if the network selection stays in 'I do not trust this network'.
Please refer to the below article to repair AVG Internet Security. 
https://support.avg.com/SupportArticleView?urlname=repair-avg-antivirus
After repairing the program, please reboot the PC to apply the changes. 
Thank you and keep us updated. 

Hello Catherine. 
Thank you for contacting AVG Support Community. 
We're sorry to hear that you're facing this trouble. 
We will check and help you further. 
If your PC is connected to an untrusted network, some of the personal applications or connections will not work in order to protect your PC. Because hackers may get into your PC via untrusted networks. So the screen mirroring failed to work before, After that, you changed the network profile to 'I trust this network' which means AVG considered your current network as trusted one so it allowed screen mirroring. 
We request you to repair AVG Internet Security and check if the network selection stays in 'I do not trust this network'.
Please refer to the below article to repair AVG Internet Security. 
https://support.avg.com/SupportArticleView?urlname=repair-avg-antivirus
After repairing the program, please reboot the PC to apply the changes. 
Thank you and keep us updated. 

We have Windows 11 on Samsung Workbook Pro and AVG has been preventing us from screen mirroring to Samsung TV's.  I have located the Trusted Networks within AVG and have now successfully shared my screen with trusted work and home networks but there is a Network12 listed as a trusted network.  I don't know where Network 12 is and if I click the radial button "I don't trust this Network" it immediately switches back to "I trust this Network".  Can anyone help with this issue?