I’m using 188.8.131.52 with DoT in my router.
I cannot open the webpage oe24.at, but ping it.
When I change my DNS to 184.108.40.206, I can open the webpage.
I can get it to it using DoH to 220.127.116.11. Can you configure your router for DoH and see if that helps?
Can you also verify that you’re using 18.104.22.168 DoT by visiting https://22.214.171.124/help
My router has only the option “DNS-over-TLS” or “none”.
And this is Firefox, without any addons:
126.96.36.199 as DNS (without DoT) is working, e.g. the website is loading.
It’s working again now! Thanks!