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DNS-over-HTTPS Mikrotik DoH server connection error: SSL: internal error (6)

Getting DoH server connection error: SSL: internal error (6) every sec.

This problem started month or so ago. I have DOH implemented on 2 other Mikrotik routers and works fine no errors. All on RouterOS 6.49

I've tried to setup router from scratch and  DOH, it works fine for about hour then the DoH server connection error: SSL: internal error (6) starts repeatedly. I can use cloudflare and google DOH fine. Standard DNS Methods work No problem as well. I have also changed MAX UDP, CACHE AND Concurrent SIZES.

Rebooting Mikrotik fixes errors for awhile Hour or so then I notice NS lookups slow websites slow or don't load usually error DNS Probe started. Any Help would be greatly appreciated.

6 replies

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    • carlos_joao_gs
    • 1 yr ago
    • Reported - view

    Também estou com o mesmo problema nos meus 2 mikrotiks!

    • Luca_sr
    • 1 yr ago
    • Reported - view

    Gives me error: DoH server connection error: Idle timeout - connecting

    I can't resolve

      • Robdejonge
      • 1 yr ago
      • Reported - view

      Luca Scattu Did you ever resolve this?

      • Luca_scattu
      • 1 yr ago
      • Reported - view

      Rob de Jonge yes 

      • Robdejonge
      • 1 yr ago
      • Reported - view

      Luca scattu That's great. Could you share how you did? 

    • Robdejonge
    • 10 mths ago
    • Reported - view

    So apparently the DoH implementation on Mikrotik is just really poor.

    I learned this from the customer service team over at Control D. Turns out "ignoring customers" like NextDNS does is not the only way! 

Content aside

  • 2 Likes
  • 10 mths agoLast active
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