Multiplayer Mode doesn´t work on PS4?

Dear Generation Zero team,

the Multiplayer mode on my ps4 doesn´t work. I really don´t know what I make wrong… :frowning: I connected with a friend and the only thing is : " CONNECTING TO HOST". After 30 Minutes waiting i broke up. I do it again and wait also 30 minutes or more… nothing happend.
Can anybody tell me what i make wrong? or is it a mistake of the game at the moment?

Best regards. Malo