OPNsense Forum

English Forums => 26.7 Series => Topic started by: Atom Ant on July 19, 2026, 08:50:42 AM

Title: Can't set DNS over TLS. Stuck with ISP even with override disabled
Post by: Atom Ant on July 19, 2026, 08:50:42 AM
Hi guys, Since updating I have been unable to use my usual cloudflare or mullvad DNS over TLS settings. I have made sure as usual to disable override from DHCP/PPP over WAN etc. Testing my connection on 3 different tools for cloudflare, mullvad and DNScheck.tools reports my ISP as dns.
 
Title: Re: Can't set DNS over TLS. Stuck with ISP even with override disabled
Post by: Boxer on July 19, 2026, 09:04:57 AM
Incorrect CN maybe? Show your Unbound DoT settings for Cloudflare
Title: Re: Can't set DNS over TLS. Stuck with ISP even with override disabled
Post by: Atom Ant on July 19, 2026, 09:09:08 AM
No I have all the same details saved in autofill, and even copied from the websites before coming here, been confused at it for a few hours lol
Title: Re: Can't set DNS over TLS. Stuck with ISP even with override disabled
Post by: Atom Ant on July 19, 2026, 09:10:16 AM
mullvad does the same if i try that
Title: Re: Can't set DNS over TLS. Stuck with ISP even with override disabled
Post by: Boxer on July 19, 2026, 09:11:54 AM
If you're using Cloudflare Malware blocking DNS then it's 1.1.1.2.
1.1.1.1 CN is cloudflare-dns.com
Title: Re: Can't set DNS over TLS. Stuck with ISP even with override disabled
Post by: Boxer on July 19, 2026, 09:13:35 AM
Leave the Domain box empty
Title: Re: Can't set DNS over TLS. Stuck with ISP even with override disabled
Post by: Atom Ant on July 19, 2026, 09:14:44 AM
just changed it to 1.1.1.2 and still the same
Title: Re: Can't set DNS over TLS. Stuck with ISP even with override disabled
Post by: Atom Ant on July 19, 2026, 09:16:43 AM
Quote from: Boxer on July 19, 2026, 09:13:35 AMLeave the Domain box empty

Yeah that makes sense actually lol. 2 secs
Title: Re: Can't set DNS over TLS. Stuck with ISP even with override disabled
Post by: Atom Ant on July 19, 2026, 09:20:43 AM
Quote from: Boxer on July 19, 2026, 09:13:35 AMLeave the Domain box empty


Yeah that seems to have done it, Thanks Boxer. Its been a long night lol. Ive had a rough one after updating. before this I updated to 26.7 and the HP Z240 I was using decided to die after a reboot. I eneded up having to use an old gaming PC until I look for something to replace it on ebay. So its been a long night :D
Title: Re: Can't set DNS over TLS. Stuck with ISP even with override disabled
Post by: Boxer on July 19, 2026, 09:22:01 AM
Glad it's working :)
Title: Re: Can't set DNS over TLS. Stuck with ISP even with override disabled
Post by: Atom Ant on July 19, 2026, 09:23:40 AM
Me too mate lol my eyes are going square. now I just need to figure out why NUT takes me to report an issue page when I try to configure it :D
Title: Re: Can't set DNS over TLS. Stuck with ISP even with override disabled
Post by: Patrick M. Hausen on July 19, 2026, 10:48:12 AM
Quote from: Atom Ant on July 19, 2026, 09:23:40 AMMe too mate lol my eyes are going square. now I just need to figure out why NUT takes me to report an issue page when I try to configure it :D

opnsense-patch https://github.com/opnsense/core/commit/14710e7

or wait for 26.7.1.