Error trying to update avast using Firewall

Avast Free Antivirus / Premium Security
1

Hello!

I´m trying to update avast 4.8 professional through a network firewall and I got an error like this:
http(403) error - 75.125.188.2:80//iavs4x/pro-av_pro.vpu

Is there some especific port to release on firewall or some NAT rule.

Why avast use dynamic IP address to update the necessary files ?

Thanx!

2

I don’t think so. Updates comes to the port 80 as any other http traffic.

To balance the server bandwidth of 100+ million users ???