I met 4 problems in an aram game

1. while others were loading, i was told by client that i was disconnected and check internet. I was and am pretty sure my internet was good that time because i can open browsers and log in & off client without any problems. It was solved after 3 time i log in & off the client
2. my game was changed from full screen to windowed for no reason
3. top right corner had multiple small rectangles flashing
4. got fps drop to 3-5 at the end of the game, usually is 25 at least

I've tried to scan the picture of the proof but i failed though xD