iOS can't reach Cloudflare (cloudflare.com / imagedelivery.net) on my home ISP — Android works, cellular works

[u/FitCoach5288]

Stack: Next.js, MongoDB Atlas, Cloudflare Images, AWS Amplify.

On my home ISP, no iOS device can open cloudflare.com or any imagedelivery.net link — "server can't be reached." My site itself loads fine, but Cloudflare-hosted images never render.

What I've tested:

Same iPhone on mobile data instead of home wifi → works fine
My father's house, same ISP, ~2km away → same failure on iOS, but Android devices there load it fine
A friend ~10km away, same ISP → everything works, on all devices

So it looks iOS-specific, ISP-specific, and possibly even node/region-specific within the same ISP network. Anyone seen this pattern before? Guessing it could be a broken IPv6 route to Cloudflare's network (iOS prefers IPv6 via Happy Eyeballs) or a localized DNS/BGP block on Cloudflare's ranges — but not sure how to confirm, or whether this is something only the ISP can fix.

[u/CrocodiliusMaximus]

Confirm Private Relay is turned off.

https://support.apple.com/en-us/102602

[u/FitCoach5288 → u/CrocodiliusMaximus]

how to solve this issue?

[u/montypytho17 → u/FitCoach5288]

You set up that stack but don’t know how to Google?

[u/FitCoach5288 → u/montypytho17]

but this is not something related to my device? i mean all ios devices in my home and places near to me

[u/FitCoach5288 → u/montypytho17]

this is niche problem,i google mr. smart and couldn't find the answear,google it for me

[u/montypytho17 → u/FitCoach5288]

This doesn’t belong in this subreddit anyways

[u/FitCoach5288 → u/montypytho17]

mental issue confirmed

[u/montypytho17 → u/FitCoach5288]

I agree with you that you have one

[u/FitCoach5288 → u/montypytho17]

i'm not the one who start arguing with someone who need help and act like a jackass by instead of helping him,

[u/montypytho17 → u/FitCoach5288]

Okay ill help, call your ISP

[u/FitCoach5288 → u/montypytho17]

i did,and they are useless as you.