this post was submitted on 27 Aug 2026
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Some global ISPs still struggle with IPv6. I recall that until somewhat recently Vodafone didn't supported it at all. Are you sure this is a Cloudflare issue?
Cloudflare gives its 522 error, but I can load via IPv6 from the same city. I've also found the issue with Cf in front of servers I run on a different continent, so I've been able to do some good testing and have spent plenty of time looking into it. I haven't found any other Cloudflare locations with the problem, but there's plenty of them.
This means Cloudflare is forwarding the request but the origin server times out. Meaning, it's the origin server that is unable to handle the IPv6 request.
https://developers.cloudflare.com/support/troubleshooting/http-status-codes/cloudflare-5xx-errors/error-522/
Please reread the first sentence of what you just replied to.
I read, and then I posted. Is there anything in my reply that I can explain to you?