Ok, 2 out of 3 games i get randomly disconnected. I get "kicked" out of the game without waiting for "insert seconds here to drop". It may happen at the start of the game or mid-game. I play on Bnet...public games btw...not custom games.

BUT! I am still on the battlenet. I get disconnected from the game and go back to the initial screen (the screen you get after typing in your username and password). Ofc, i get banned cause the host considers that i am a leaver.
Yet, i do NOT lose my internet connection.
I did set a static IP.
I did port-forwarding.
I excluded WarIII and Euroloader and all from Firewall and from Avast Antivirus
I do not run any other application

So...wtf?!?!? MITSUKI? Help please