Can't connect to my domain on my network, accessing from mobile works fine - ERR_NAME_NOT_RESOLVED

Website, Application, Performance DNS & Network
1

Very strange problem. I can’t access my domain or its subdomains on my local network. This started out of the blue today while working on our mobile application (when I switched off wifi it resolved, showing the issue was related somehow to my network).

My domain is upbeing.ai and my app connects to app.upbeing.ai. I can’t connect to either which tells me its a network / dns issue not a server issue. I get the error ERR_NAME_NOT_RESOLVED and the page doesn’t even attempt to load.

  • I have startlink in bypass mode and a TP Link router which uses 1.1.1.1 and 9.9.9.9 for dns. DHCP clients also receive these DNS.
  • I manually set my macbooks dns to 1.1.1.1, 9.9.9.9. Same issue.
  • My domain is configured properly on namecheap and DNSSEC is turned off. Nameservers point to the cloudflare ones.
  • Not banned on cloudflares firewall as far as I can tell

I ran this tool and half of the lookups fail so something is definitely wrong here:
https://www.whatsmydns.net/#A/app.upbeing.ai

I am pulling my hair out over this, what else can I check?

4

Well, it’s not. See here. Turn it off to fix the issue.

1 Like
5

Thank you!

On Namecheap I see this:

Sorry, DNSSEC is not available on this domain because this particular TLD (domain extension) does not support DNSSEC at the registry level. [Learn More https://www.namecheap.com/support/knowledgebase/article.aspx/9718/2232/nameservers-and-tlds-supportedunsupported-by-dnssec

I’ve contacted their support to see if they can adjust this record for me. Is there anything else I can do or is this in their hands?

6

You may pause Cloudflare for the specified domain until the issue has been fixed and then continue onboarding. More info here:

7

Pausing cloudflare doesn’t fix the issue. I have reached out to Namecheap, they are investigating. Thank you for the help

8

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