Lost access to my network

Hello Michael,
Thank you for contacting AVG Community Support.
We are really sorry to know that after updating AVG application unable to access computer on your network.
Please accept our sincere apologies for the inconvenience caused. We'll certainly check and help you out.
As you said changed the network to trusted but still issue persists. So, we would request you to disable AVG firewall and check are you able to access other PC over network.
Also, please share the screenshot which shows port hasbeen closed by the admin.
Please refer this article for take screenshots:
(https://support.avg.com/SupportArticleView?urlname=AVG-Create-screenshot
You can post the screenshot here in your topic. Click on Answer & then click on the Image [mountain symbol] & follow the instructions. 

Thank you and keep us updated.

After the last update of AVG I can no longer access my other computers on my network. It says that the  IPV6 port has been closed by the administrator and so there is no access to the other computers in my network.

I have tried a number of things, made sure the ports are on automatic, clicked on "trusted network" in the firewall to no avail. Any suggestions? I have screenshots available but not sure how to attach to this post.

Hello Michael,
Thank you for contacting AVG Community Support.
We are really sorry to know that after updating AVG application unable to access computer on your network.
Please accept our sincere apologies for the inconvenience caused. We'll certainly check and help you out.
As you said changed the network to trusted but still issue persists. So, we would request you to disable AVG firewall and check are you able to access other PC over network.
Also, please share the screenshot which shows port hasbeen closed by the admin.
Please refer this article for take screenshots:
(https://support.avg.com/SupportArticleView?urlname=AVG-Create-screenshot
You can post the screenshot here in your topic. Click on Answer & then click on the Image [mountain symbol] & follow the instructions. 

Thank you and keep us updated.