Quad9 DNS randomly stopped working (lemmy.ca)

submitted 5 months ago* (last edited 5 months ago) by [email protected] to c/[email protected]

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I have been using Quad9 for my DNS, setup at the router level, for months without issue. Today, I woke up and the internet wasn't working, and as the one in the house who self-hosts a couple things on an old laptop and thus tinkers with the router, I was the one my roommates looked at in a panic.

I figured I'd just do a factory reset, and it worked! And then stopped working when I changed the DNS from my ISP's servers to Quad9's. I can't even ping their servers from my home network.

Could my home IP have been banned from Quad9 for some reason? I truly can't imagine why.

EDIT: Update if anyone cares, it works now. I assume it was a problem somewhere between my network and Quad9's servers, since I didn't change any configurations to make it work.

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[-] [email protected] 2 points 5 months ago

What happens if you run a traceroute to their servers?

[-] [email protected] 2 points 5 months ago* (last edited 5 months ago)

It drops after a couple of jumps:

[...]
11  equinix-ashburn.woodynet.net (206.126.236.111)  52.562 ms  63.837 ms  51.576 ms
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this post was submitted on 13 Jan 2025

9 points (100.0% liked)

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