Hi!
For a few days I've been trying to setup ESET Firewall to block Steam from accessing the internet on my computer (on a certain firewall profile called Steam_block.)
I've created a rule to block all communications (inbound and outbound, all protocols) for local applications steam.exe and steamwebhelper.exe.
It partially works, because when applied, I can't browse store/community/workshop, but my friend list still works and I can send and receive chat messages. I am sure those two processes are responsible for chat messages also, because when I send/receive message windows network monitor shows steam.exe is sending/receiving data, even though it shouldn't.
I've tested another firewall application, and it is sufficient to block steam.exe there - steam immediately shows it's disconnected from the internet and friend list/chat functionality stops working. Am I doing something wrong?
In attachements I included screenshots of how the firewall rule is set.
Thanks in advance for any help.