[CRASH] Game crashes when starting game and says not connected to internet

I was starting a ranked game and when I started the game, the game crashed and said I was disconnected to internet. I checked my internet , it was fine, and turned off and connected to WiFi, the game still says I am disconnected from internet. I tried clicking the reconnect button over and over, and later, it says my client version is something, and the server version is something different. So I ran a full repair twice, but it still didn't work. I'm currently downloading the entire game again. I think I'm going to get a 20 minute wait for the leaverbuster, so you please get rid of it? Thanks.