Comcast: How can I switch from IPv4 to IPv6

VirginMedia (Modems/Gateways): how do i switch from ipv4 to ipv6?
IPv6 support was removed as part of the “upgrade” 🙁

IPV6 has to be supported by your router and your ISP. IPV6 is already built into Xbox and when it detects it you're set.

Comcast is my ISP and their network supports IPV6.

I have a netgear router that supports IPV6 and it's just a matter of logging in to the router and enabling the IPV6 feature.

the main point of IPv6 is that every device connecting to a network will have a publicly visible IP address, the problem with IPv4 is that there are not enough public addresses, so in most cases a public IPv4 is assigned to your router from your ISP, then
the router creates its own network of IPv4 addresses and assigns them to your devices, like the X1, computers, tablets and so on.

so in order for all of your devices to pull a IPv6 addresses, your router has to be set to bridge to allow your devices to go to Comcast and request a IPv6 address, otherwise your devices are just going as far as your router for an IP, which by default,
most routers will assign a IPv4.

if you have a Comcast modem/router combo, then you'd want to check with Comcast.

Only your internet provider can give you ipv6 if they support it. If they do, then they can help switch it on for you. If you are successful, then your Xbox One should detect it, and automatically use it.

Hello Fallen Hexic!

Thank you for posting on Xbox Forums! I will be happy to assist you today with the issue. As some of our Ambassador's mentioned before, the only way you can check to see if you can go from IPv4 to IPv6 is if you check with your ISP, or Internet
Service Provider. We do have some information about
IPv4 and IPv6 on the Xbox website, which, I would recommend checking out for further assistance. However, I would strongly suggest asking your ISP for more info on your local network and router to see if they support IPv6 and how you can get it.

If you have any further questions feel free to reply back letting us know. Again, thank you for posting on Xbox Forums!