Frequent DC issue after many fix, troubleshoot, and steps

[GreatestEver]

Still D/C once in a while. Giving some login error 1000/2000/3000. The connection is fine! My screen load bar progresses and my char/party all act normal (nothing stops like a "dropped" connection). Client force quits anyway, making me log back in everytime and spend an hour of my day on loading client, sometimes twice if I get the "account already login". Horribly frustrating and right now the sole reason I want to "drop" the game. Tons of correspondence with support later didn't help. There's nothing wrong on my side at this point.