Michael,
We apologize for the difficulties. We request you to open your AVG Zen and click on AVG Internet Security, it will open a new interface. There you have the actual options to add exceptions in firewall / advanced settings. Please, feel free to let us know if you require any further assistance. Thank you.
since installing the AVG Zen interface I cannot find the settings or any reference to the firewall
Michael,
We apologize for the difficulties. We request you to open your AVG Zen and click on AVG Internet Security, it will open a new interface. There you have the actual options to add exceptions in firewall / advanced settings. Please, feel free to let us know if you require any further assistance. Thank you.