Unable to get Letsencrypt certificate for one virtual host

Virtualmin
1

I have 4 virtual hosts on a virtualmin instance. I was able to use the web form to install certificates for 3 of them, but the 4th gives me the following errors:

Requesting a certificate for biz-on-ramp.com from Let’s Encrypt …
… request failed : Web-based validation failed :
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Starting new HTTPS connection (1): acme-v01.api.letsencrypt.org
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for biz-on-ramp.com
Using the webroot path /home/biz-on-ramp/public_html for all unmatched domains.
Waiting for verification…
Cleaning up challenges
Failed authorization procedure. biz-on-ramp.com (http-01): urn:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from http://biz-on-ramp.com/.well-known/acme-challenge/6aZ4emgqjsQegfaxYTN_TpmVaqsB15xQ3ZsI3nzvfrc: "

404 Not Found

Not Found

<p" IMPORTANT NOTES: - The following errors were reported by the server:

Domain: biz-on-ramp.com
Type: unauthorized
Detail: Invalid response from
http://biz-on-ramp.com/.well-known/acme-challenge/6aZ4emgqjsQegfaxYTN_TpmVaqsB15xQ3ZsI3nzvfrc:
"

404 Not Found

Not Found

<p"

To fix these errors, please make sure that your domain name was
entered correctly and the DNS A/AAAA record(s) for that domain
contain(s) the right IP address.
DNS-based validation failed :
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator manual, Installer None
Starting new HTTPS connection (1): acme-v01.api.letsencrypt.org
Obtaining a new certificate
Performing the following challenges:
dns-01 challenge for biz-on-ramp.com
Waiting for verification…
Cleaning up challenges
Failed authorization procedure. biz-on-ramp.com (dns-01): urn:acme:error:dns :: DNS problem: NXDOMAIN looking up TXT for _acme-challenge.biz-on-ramp.com
IMPORTANT NOTES:

  • The following errors were reported by the server:

    Domain: biz-on-ramp.com
    Type: None
    Detail: DNS problem: NXDOMAIN looking up TXT for
    _acme-challenge.biz-on-ramp.com

I have checked the DNS, and everything looks fine. What am I doing wrong?

2

From the error there is some kind of permission problem. Is the web root for that site owned by the user? Do you have some kind of restriction in a .htaccess file somewhere, or in the config file?

3

I have tried removing the .htaccess, but there was no change. It is a multisite wordpress install.

4

Did you find a resolution to this problem?

5

I kept messing with settings, and it suddenly worked. I still am not sure why.