Server is unreachable

What is the name of the domain?

What is the error message?

ERR_NAME_NOT_RESOLVED

What is the issue you’re encountering

I have set up Home Assistant using Cloudflared with a tunnel from my private server to my domain. Initially, I ran into a lot of issues, but now it’s mostly working. The only problem is accessing it from my mobile phone on a cellular network. When connected to Wi-Fi, I can connect without any issues, but on cellular, I keep getting an ERR_NAME_NOT_RESOLVED error. I thought there might be some rules configured in Cloudflare for my domain, but I couldn’t find any.

What steps have you taken to resolve the issue?

Adjusted the configuration in Settings > WARP, changing from Exclude to Include (this was necessary to make it work over Wi-Fi).
Disabled DNSSEC (its status was previously pending).
Tested on multiple devices (the issue only occurs on my mobile phone when Wi-Fi is off).

Might be local ISP cache or DNS propagation not done yet at mobile ISP? :thinking:

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