My Xbox is connected to IPv4, how to get connected to IPv6?

Do you know if you ISP supports IPv6? Your router could be tunneling your IPv4 connection to an IPv6 which basically means it is sending IPv6 packets through an IPv4 connection to communicate with IPv6 servers. I found out myself the xbox doesn't
like this at all. My ISP doesnt support IPv6. When I would look at my connection on my xbox it would say IPv4 and IPv6. So O went into my router settings and sure enough my router was set to tunnel IPv4 to IPv6. I went through set to IPv4 only and it solved
my problem. This causes a teredo error in your xbox.

I'm not sure. How can I check if my router is tunneling it through Ipv4?

Do you know if you ISP supports IPv6? Your router could be tunneling your IPv4 connection to an IPv6 which basically means it is sending IPv6 packets through an IPv4 connection to communicate with IPv6 servers. I found out myself the xbox doesn't like
this at all. My ISP doesnt support IPv6. When I would look at my connection on my xbox it would say IPv4 and IPv6. So O went into my router settings and sure enough my router was set to tunnel IPv4 to IPv6. I went through set to IPv4 only and it solved my
problem. This causes a teredo error in your xbox.

Does xbox1 stil run on ipv4 or do you have to be on ipv6

It xbox one supports ipv6 nativity. It can support ipv4. It is really up to carrier if you are able to get an ipv6 connection.

Was hoping one of them would explain it!

Not sure what else to suggest really as I am not an expert at networks etc. Might be worth looking into whether your router is using IPV4 or IPV6 and, if on IPV4, adjusting it so it connects using IPV6 (assuming your ISP even allows IPV6..mine doesn't). IPV4 allows networks to connect to IPV6 by using a Virtual Adapter (not sure how to describe it better but your get the idea)..however, the adapter is problematic at times

Teredo isnt actually a program or file. It has to do with tunneling an IPv6 connection on a IPv4 internet connection. You might check with your ISP and see if they offer IPv6 in your area. If they dont xbox live seems to have an issue with tunneling. I
would recommend going into your router and see if your router is tunneling IPv6 to IPv4 and just disable the IPv6 and just use IPv4. Xbox seems to run great off a true IPv6 connection but doesnt do well if you are tunneling it from the older IPv4.