How to troubleshoot Let’s Encrypt Certificate

To generate a Let’s Encrypt certificate:

1. Open the Administration Console and go to:
   System > Certificates

2. Click Add Certificate.

3. Choose Free Let’s Encrypt Certificate, then select the domain for which you want to generate the certificate.

4. The certificate will start generating (initially without a checkmark).

   

Wait about 10 seconds, refresh the page, and a checkmark should appear:

• ✅ Green checkmark – The certificate is valid and in use.

• ❌ Red cross – The certificate is invalid and requires troubleshooting.

  

  

Common Causes of Certificate Failure

• The request is blocked by a firewall (ports 80 and 443 must be open).

• The domain’s DNS records are invalid or misconfigured.

Troubleshooting Steps

1. Verify DNS Settings

1. Open Administration Console > Domains & Accounts > Management.

2. Select your domain and click the Information tab.

3. Check that all DNS records point to the correct IP addresses.
   (See How to Set Up DNS in IceWarp Cloud for guidance.)

2. Check Web Logs

1. Open Administration Console > System > Services.

2. Go to the General tab.

3. Set the Web log level to Extended.

4. Attempt to create the certificate again.

5. Open Administration Console > Status > Logs.

6. From the Log dropdown, select Web.

7. Review the Certification section to track the certificate creation process.

3. Use Let’s Debug

1. Visit Let’s Debug.

2. Enter your domain name.

3. Choose a validation method.

4. Click Run Test.

5. Review the results to identify potential issues.