Prefer IPv4 over IPv6 on Windows

Use the following commands to change the preference on Windows to use IPv4 over IPv6.

netsh interface ipv6 set prefix ::/96 60 3


netsh interface ipv6 set prefix ::ffff:0:0/96 55 4

Confirm the precedence has changed with the following command:

netsh interface ipv6 show prefixpolicies

To make this permanent across reboots, issue the following command:

reg.exe add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters /v DisabledComponents /t REG_DWORD /d 0x20 /f

You can revert back to the default value by substituting 0x20 with 0x00 in the above command. For reference, here are the possible values.