FP4 iodéos 4.1 fails ipv6 checks

Hi, I was browsing the internet when I saw a message Appear on a website saying that I don’t have ipv6.

I went to check that to https://test-ipv6.com/ and found out that indeed I don’t. Tried with brave browser and Firefox with the same result.

This happens on mobile and wifi networks.

Another Android phone with stock Android connected to the same wifi network does not fail ipv6 tests. And I’m confused because I do have an ipv6 according to Android settings.

What do I need to do to fix this?

Edit: I do have ipv6 on my DNS, that’s the single test it doesn’t fail