Hi Steve,
We're glad to look into this & help you.
Initially, please follow the steps in this article to check if the required port settings are configured properly in AVG program & let us know.
Hello Steve,
Thank you for sharing us the screenshot of the port settings. Could you please share the screenshot of the error which you get when AVG Internet Security is ON?
Also, please confirm whether you are only unable to send (or) Unable to send/receive when AVG program is ON. We look forward for your response.
Hello Steve,
Thank you for sharing the screenshot with us. We have already escalated this issue to concerned team. They are working on the process of fixing it. We need to collect logs in order to analyze the issue further.
We request you to get connected with our additional support. An email instruction has been sent which will help you to get connected.
If the email is not found in inbox do check on spam and junk folders.
My port numbers are in sync with those listed under the AVG settings. Using port # 995 on POP server.