High latency

I've had high latency with NextDNS for a couple of weeks now. Here are the diagnostics: https://nextdns.io/diag/434fb9f0-3be6-11ef-b0ce-0fbb4aaba06b

4 replies

    • upgrade582
    • 5 days ago
    • Reported - view

    It would appear to be a problem with DoH in Windows 11. I set it up within Firefox and have no problems

    • BigDargon
    • 15 hrs ago
    • Reported - view

    If you use the IP address 45.90.28.x/45.90.30.x (including using encrypted DNS) then you are always connected to the anycast server. As in your case using Windows 11 encrypted DNS, anycast static IP address is used, so you will connect to anycast server.

    For browsers (such as Chrome/Firefox..) that use native dns, the browser will query the dns record of the domain dns.nextdns.io. So the browser is always connected to the ultralow server.

    Read more https://help.nextdns.io/t/h7hmvak/what-is-anycast-and-ultralow

    So, for Windows 11, you should use NextDNS for Windows, you will use ultralow server.

    P/s: Anycast server routing depends on many factors, so I prefer to use an ultralow server. Usually, 1 of 2 anycast servers will have 1 server routed away. Photo of ping test from my country.

      • upgrade582
      • 8 hrs ago
      • Reported - view

      Thank you very much for the clarification. I don't understand because it's been a year since I had it set in the Windows settings with DoH and never had a problem until a few weeks ago.

      • BigDargon
      • 7 hrs ago
      • Reported - view

       Anycast often has this problem (for me). Therefore, NextDNS develops by opening servers in countries, clients will connect to this server, called ultralow server.

      As you can see my ping results, anycast2 routed to Japan, while I was living in Vietnam. In the past, it was often routed to Europe. I don't know the reason is because of my network provider or anycast routing, so I prefer to use ultralow servers.

Content aside

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