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Requests to image.tmdb.org fail (but they are not blocked!)

Lately the iOS App I use to track my progress on watch TV shows is super slow and fails to load images. I noticed that I only experience this problem when I'm using NextDNS as DNS. If I select a different DNS, use a VPN (with its own DNS, or switch to cellular, the App works just fine.

Initially I assumed NextDNS blocking a domain to be the root cause of this problem, but there are no blocked attempts in my log! When I checked with ProxyMan (as MITM) I see that all requests to https://image.tmdb.org return error 999 (and a warning about rate limits in one of the headers?).

What could be happening here?

How can I solve this, without stop using NextDNS?

1 reply

null
    • iOS Developer
    • Rob
    • 1 yr ago
    • Reported - view

    Turns out it was not NextDNS blocking image.tmdb.org, but the Skynet firewall on my router.

    It was blocking IP address 138.199.37.227 because that is in blocklist firehol_level2.netset.

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