Status 400: Error getting validation data

Hi,

I’m trying to update my certificate as usual with cron+dehydrated (0.5.0). My configuration worked fine for more than a year. Now I’m getting the following error message:

Processing manoki-has.no-ip.org
 + Checking domain name(s) of existing cert... unchanged.
 + Checking expire date of existing cert...
 + Valid till Feb  3 15:03:07 2018 GMT Certificate will expire
(Less than 30 days). Renewing!
 + Signing domains...
 + Generating signing request...
 + Requesting challenge for manoki-has.no-ip.org...
 + Responding to challenge for manoki-has.no-ip.org...
ERROR: Challenge is invalid! (returned: invalid) (result: {
  "type": "http-01",
  "status": "invalid",
  "error": {
    "type": "urn:acme:error:connection",
    "detail": "Fetching http://manoki-has.no-ip.org/.well-known/acme-challenge/LdYX0Ynwdrwwhl-S71csyVpPHMwoXFFkSWFPpdpAA9Q: Error getting validation data",
    "status": 400
  },
  "uri": "https://acme-v01.api.letsencrypt.org/acme/challenge/Y2oB8bLikU87_lTKpXlwjxgcC7PhtsUcCJg0N3UWsMY/3332999204",
  "token": "LdYX0Ynwdrwwhl-S71csyVpPHMwoXFFkSWFPpdpAA9Q",
  "keyAuthorization": "LdYX0Ynwdrwwhl-S71csyVpPHMwoXFFkSWFPpdpAA9Q.YJE5FR9JUTdla5bYrHzRIGivAd6OGqIYdOEjKLLvxa8",
  "validationRecord": [
    {
	  "url": "http://manoki-has.no-ip.org/.well-known/acme-challenge/LdYX0Ynwdrwwhl-S71csyVpPHMwoXFFkSWFPpdpAA9Q",
      "hostname": "manoki-has.no-ip.org",
      "port": "80",
      "addressesResolved": [
        "79.228.229.167"
      ],
      "addressUsed": "79.228.229.167"
    }
  ]
})

I checked everything, my server seems to be correct. It serves the files via http (not https) without any redirect, I have no ipv6.
But i don’t get any clue, why its not working anymore.

Thanks for your help
ManOki

The IP address doesn’t work:

osiris@desktop ~ $ telnet manoki-has.no-ip.org 80
Trying 79.228.229.167...
telnet: connect to address 79.228.229.167: No route to host
osiris@desktop ~ $ 

Is that actually the IP address of your server? Or is your dynamic DNS misbehaving or not up to date?

Ok, now i feel stupid…thank you!! My router was misconfigured…

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