Initializing game mode - stuck

For a few weeks now i can’t play the game,
i load it and when i switch to Co-Op it says: “Can’t start while initializing game mode”, only after about 10 min or maybe more it stops and i can press the “ready” button and sometimes you can press the “ready” button but it’s not connecting or do anything…

now the answer blizzard support gave me is that this is a result of a connection problem - so i switched my provider and on wifi i get 60 MB in my room so no problem there, i flushed the dns and all the other so called “solutions” - nothing fixed it,
not even the new patch today which had attention to the multiplayer …

What can i do? please help :slight_smile: