I have lost connection to the server for no reason during comp match. I was not able to rejoin the match again, and I was not able to login in Blizzard launcher at all. After 2 minutes I successfully launched game again and I saw that I loose the match, but why, Blizzard, why?
Because they can’t tell when someone pulls the plug vs disconnect due to ISP. More info here: Overwatch Technical Issues, SR Loss, and Leaver Penalties