Using Software Load balancers , Having the Loopback LAN IP assigned on many machines , Registering same IP from different machines. will cause DNS ip duplication
So best practice is to disable DNS registration on the unwanted LANs
LAN – Properties – IPV4 – Advanced
Make sure ipv6 address is not registering on DNS server as well .
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To disable Ipv6 using powershell
New-ItemProperty -Path HKLM:\SYSTEM\CurrentControlSet\services\TCPIP6\Parameters -Name DisabledComponents -PropertyType DWord -Value 0xffffffff
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To Disable IPv6 address registering to DNS server
netsh int ipv6 6to4 set state disabled
Make sure none of the LANs are Using IPv6 , before running that command
