Website Not Accessible with Cloudflare Proxy Enabled (SSL Issue)

What is the name of the domain?

Richworks.com

What is the error message?

richworks.com doesn’t support a secure connection.

What is the issue you’re encountering

I’m having an issue with my domain richworks.com after enabling the Cloudflare proxy. When I turn on the proxy (orange cloud), the website becomes inaccessible, and I get the error message: “richworks.com doesn’t support a secure connection.” However, if I disable the proxy (gray cloud), the site works fine without any SSL errors.

What steps have you taken to resolve the issue?

What I’ve Tried:
SSL/TLS Mode in Cloudflare:
Tried all modes: Flexible, Full, and Full (Strict).
Reinstalled SSL Certificate:
Reinstalled a valid Let’s Encrypt certificate using runcloud

Cleared Cache/DNS:
Cleared browser cache, flushed local DNS, and tested in incognito mode.

Was the site working with SSL prior to adding it to Cloudflare?

No

What is the current SSL/TLS setting?

Full

What are the steps to reproduce the issue?

Setup Details:
Domain: richworks.com
Subdomain: dev.richworks.com (works fine with proxy enabled)
Hosting: AWS EC2, managed via RunCloud
Web Server: Nginx
SSL Certificates:
richworks.com: Configured with a valid SSL certificate from Let’s Encrypt (also tried using Cloudflare Origin SSL).
dev.richworks.com: Same configuration, works without issues.
DNS in Cloudflare:
richworks.com: Proxy disabled (DNS only)
dev.richworks.com: Proxy enabled (orange cloud)

Screenshot of the error

I don’t see an SSL issue (Cloudflare is returning the edge certificate ok on connection). There are 2 IP addresses for richworks.com. The 18.x.x.x one responds with your site immediately, 172.x.x.x is timing out.

https://cf.sjr.dev/tools/check?89e264f256a34f6cb0c2790165c47812#dns

2 Likes

Thank you so much sjr, once deleted the A record point to the broken ip address, website become normal. it not only solve the ssl isssue, but it solve the speed issue that I have before this.

This topic was automatically closed 15 days after the last reply. New replies are no longer allowed.