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I was playing ranked, grinding to diamond rank, and after a match I was kicked during the looting/match results screen. I received a 30 minute penalty and lost 45% as a abandoning match penalty when I didn't even abandon, I had already won the match and was kicked while looting.
I'm sorry to hear you've encountered connectivity issues. When you were disconnected, did you receive any error messages at all?
If you haven't already, I would recommend that you try these connectivity troubleshooting steps to see if they help to resolve the issue.
If you're still encountering connectivity issues after trying those steps, please don't hesitate to update the thread. Thanks!