When you click "Open Windows Security" on Windows Server 2019 you may receive an error "You'll need a new app to open this windowsdefender"...
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Windows clients and servers will use DHCP for IPv6 addresses even when you set static IPv6 address. Not only that, but Windows client will prefer DHCP IPv6 address over static one.
On below picture we can see that ipconfig returns two IP addresses....
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