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this means there was some state the user was stuck in that required a full reconnect. Do you know how this can be reproduced?

I also don't know how to reproduce this problem. I modify the detection time of the server, which is once a year. Ha ha.

negotiationFrequency = 150 * time.Millisecond
//negotiationFailedTimeout   = 15 * time.Second
negotiationFailedTimeout   = 8544 * time.Hour //one year
dtlsRetransmissionInterval = 100 * time.Millisecond