Avast Premiere Firewall keep Blocking allowed Games

When I try to play Blizzard Games (e.g. Hearthstone, Starcraft II), avast firewall keeps blocking the connection, the game seems trying to connect to internet but blocked so I have to turn off Firewall first for the game to run then turn on again after play. I already configured all the games to be allowed (all ports allow) but the issue still occur, is there any workaround for this?

  • Which version of Premier…?
  • OS…? (32/64 Bit…? - which SP/Build…?)
  • Other security related software installed…?
  • Which AV(s) did you use before Avast…?