AVG Does Not Update Through Corporate Firewall

Hello Toby,
Thank you for contacting us. I wish I could help you but this community is for only Windows home edition product support. Please visit this webpage https://support.avg.com/business?l=en to get help.

I just updated from AVG 2013 (version 3556) to the latest Business Edition (16.151.8013).  Version 3556 worked fine and always updated without issue.  Version 16.151 will not update when connected to my corporate network.  The error is "Sorry, we couldn't reach our update server".  When I connect the computer to my home network, it updates perfectly.  I have duplicated this exact issue on another computer, so I know it's not my computer.

It feels like the update website is getting blocked by our corporate firewall.  Can anyone please tell me the address(es) of the update websites for the latest version of AVG?  When I go into AVG's Advanced Settings and expand Update, it does not display the Automatic update address.  When I attempt to run an update, the address at the bottom of the update screen flashes by too quickly to see it.

Hello Toby,
Thank you for contacting us. I wish I could help you but this community is for only Windows home edition product support. Please visit this webpage https://support.avg.com/business?l=en to get help.

Toby, Also "Business products" support… For assistance have a look @ this AVG webpage (https://support.avg.com/business_contact_form?l=en_US). Please be informed that this Community forum basically deals with 'home' version of AVG products.
AVG Guru