NextDNS not working with Red / SFR mobile provider


For a couple of weeks now, I have not been able to use NextDNS on my phone using Cellular data, with RED (SFR) provider in France.

Everything used to work fine, I am using the Private DNS feature of Android 12. I have also tried the app.

Everything seems to work fine using WiFi. I have contacted SFR but they say there are no restrictions in place regarding NextDNS. Adguard/Quad Nine etc.. seem to work fine.

Do you have any info about this issue ?


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  • What do you get if you visit https://ping.nextdns.io from your phone with nextdns disabled?

    • NextDNS  this is not related to that provider but because of the phone.  Next DNS was working with my Xiaomi 11 , bit not working with my oppo on mobile data , working great on wifi.

      Ps : I don't use the app but private DNS options

    • David cole maybe you should hide your NextDNS TLS adress in your screenshot. It can be use by anyone coming here.

    • Romain Navarro thx but i can't edit and drop the screenshot :-(

  • @NextDNS same issue for me, RED SFR, Android 12, Private DNS. screenshot without nextdns.

    adguard works fine

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  • Bonjour j'ai exactement le même problème chez orange.

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  • Hi, sorry for the late answer, I have the same ping output as above.

    Everything works except the combination NextDNS + Cellular data.

    Anyone else with these problems running GrapheneOS ? or using a Pixel phone ?

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