Battle Net Appear Offline. As of october 2017 the option to appear offline is implemented in the beta version of the blizzard battle.net app and will come to the standard version later. Introducing new social features now available in the beta version of the blizzard battle.net® desktop app: The appear offline option would allow you to appear offline at the battle.net level, but any list that tracked an individual character (friends/guild), still listed you when you logged into that character.
You’ll appear offline in battle.net and they won’t see you there but if they have your character in their friendslist and/or guild then they’ll still see you online. The weird thing is that i was in the app, i was online and playing call of duty when suddenly my app went offline.
Also new is the social tab, blizzard groups, profiles and avatars.
Unable to go online on the blizzard battle.net app the title says it all really. The new social tab, blizzard groups, profiles, avatars, and the ability to appear offline!to help get these into as many players’ hands as possible, starting today the beta version of the app is open to you and your friends—no invitation required. That's what happened in the case you mentioned. Then open up your start menu and open windows firewall with advanced security attachment 13033 then go to make a new rule on the outbound rules, set the port to 1119.