Normally modem or router uses IPV4 , those setings are automatically applied to the mdem from telephone line through Internet service provider.
But IPV6 is entirely different , we need compaytible modem or router and supported Internet service provider.
Get IPV6 settings from isp and apply manually to modem or router on in lan settings on computer
Intel i5 7200U_ Nvidia 940MX _Windows_11_Enterprise_64bit_22H2_buildno_22621.754