Within the FatPipe GUI on each WAN interface are options to select they type of connection. IPv6 is one of these. By default the “Obtain an IP address automatically using DHCP” and “Connect using PPPoE” options are disabled for IPv6 WAN settings. Click on IPv6 tab to assign IPv6 Address, prefix length, and Default Gateway settings to each WAN interface. The Default Gateway is typically the IPv6 address of your WAN router.