Client disconnect constantly

Need a solution for client constantly reconnecting. Legacy client never had this issue. Hextech troubleshooter doesn't work, canned riot responses to check connection don't work. 97/100 connection rating per their own lag report, no issues with other games, no issues if you can get the game to actually start, it's having the client survive the couple of minutes it takes to find a game without some kind of random disconnect etc. that's the problem.
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