Hi,
Recently in the last 3 or so days i have experienced issues where i received DoH server connection error: Host is unreachable from my Mikrotik router(routerOS 7.10.1), DNS service is NextDNS I’ve created a post on their forum as well but have not received an reply so far. I’ve had this config and nearly a year now and no issue so far, I’ve found a similar issue on the nextDNS forum but I’m not exactly sure if it’s related, but i tried applying some of the suggestions like adding the ultralow servers
Based on the logs first the errors start with:
DoH server connection error: Idle timeout - connecting
I’m actually not sure whats causing this, I lose network connection, mostly reboot helps and clearing cache
In the screenshot i have included the logs and my config
Earlier i have also enabled DNS logging to a file to get more detailed dns logs, I’ll update the post if i find something interesting there.
**EDIT
After some investigation the issue seems to be related to Mikrotik DoH settings and not the DNS provider, I’ve tested different DoH providers with the same result