Hello,
I too have a similar issue. I am running avast business v17.4.2520 (build 17.4.3482.0). I need some computers that have constant dealings with the internet to also connect to a local ip server, fitted with a work related database that you operate on through internet explorer. So i prefer to have avast shields up. But for some reason web shield is restricting download of certain forms from the local server. Working on the platform is just fine otherwise.
I have tried to find if it's a specific option in web shield component but none seems to work regardless if it's on or off. Only "fix" is to entirely disable web shield.
I have tried to add exclusion for this local ip on general and on web shield component. And also tried different versions of the ip string in the exclusion box: "/*" "/" "just ip" . Gave same results no matter what. I also checked avast report in which it was clear that the exclusion is indeed seen by the program. But i still fail to understand why does it still blocks download...
Any ideas?