Your computer wasn’t able to complete the connection to the server where the match was being hosted. The match was working for the other players, so the disconnection counts as a leaver penalty. You can read more about it in the pinned thread:
Your computer wasn’t able to complete the connection to the server where the match was being hosted. The match was working for the other players, so the disconnection counts as a leaver penalty. You can read more about it in the pinned thread: