Freezing Patcher after File Scan(CLIENT)

It is more like a missing feature instead of a bug.

Launcher freezes completely after file scan at the beginning of downloading. It seems like it is just because my antivirus was blocking network for the launcher. Would be nice to know whenever connection is closed with a pop-up window instead of getting a frozen launcher.

Happened using Bitdefender Total Security 2015. Solved it by simply adding launcher to exceptions.