Acme error 400: Timeout during connect

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1

Hi, I need help to understand what’s wrong with my domain dashboard.cloud.depot.pathozoom.com. I’m using Traefik Helm chart with the tls-alpn-01 challenge. It’s not the first time when I do so and usually it works. But now I’m getting the following error:

{
“level”: “error”,
“msg”: “Unable to obtain ACME certificate for domains “dashboard.cloud.depot.pathozoom.com” detected thanks to rule “Host:dashboard.cloud.depot.pathozoom.com” : unable to generate a certificate for the domains [dashboard.cloud.depot.pathozoom.com]: acme: Error -> One or more domains had a problem:\n[dashboard.cloud.depot.pathozoom.com] acme: error: 400 :: urn:ietf:params:acme:error:connection :: Timeout during connect (likely firewall problem), url: \n”,
“time”: “2020-02-12T10:33:17Z”
}

I’m out of ideas what can be wrong. Would appreciate any help.

1 Like
2

I can’t reproduce the same timeout against your domain (using the TLS-ALPN challenge) using either the staging or live ACME servers.

Is it still happening if you try right now?

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3

Just retried. The same error message.

4

Weird.

Let’s Encrypt can definitely access your server on the TLS-ALPN when I try: https://acme-v02.api.letsencrypt.org/get/authz-v3/2777094172

When you are deploying Traefik, is it trying to issue certificates for many domains, or just this one? I wonder if it is triggering some kind of firewall/connection limit to your cluster.

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5

It looks like something wrong with Traefik itself. Here’s the response from letsencrypt API in my case: https://acme-v02.api.letsencrypt.org/get/authz-v3/2778730126

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6

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