IPv6 multicast flood during sleep from i219-LM(Dell Precision 3660)

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IPv6 multicast flood during sleep from i219-LM(Dell Precision 3660)

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I am using a Dell Precision 3660 with Windows 10 (64bit).
The NIC is an I219-LM.

When this PC goes to sleep, an IPv6 multicast flood occurs,
The router hangs up.

The problem occurs not only on one machine, but also on a machine of the same model, same OS, and same NIC, purchased at the same time.

The driver version of the NIC was "12.19.2.50" installed,
However, after updating to driver version "12.19.2.56" downloaded from the Intel site, the problem was resolved.

Is this a known problem and has it been resolved with driver versions after "12.19.2.50"?

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