It’s definitely not a Cloudflare problem, as that’s not a Cloudflare error screen and it’s working for me and passes a global test. It looks like a DNS misconfiguration with either your device, or your ISP.
If that is the case, how do I fix the issue of ISP misconfiguration because I can access my site with other ISPs. It is only this ISP that give me and some users this issue.
Sometimes people add a Local Hosts file to their computer with the wrong IP address. This is rarely needed, and unlikely in your situation. Using your ISP’s DNS isn’t always the best choice, which is why services like Cloudflare DNS (1.1.1.1) and Quad9 (9.9.9.9) exist.
@hi110, +1 to that correct answer. I see your multiple tickets with Support have been merged into one. Please don’t open multiple tickets, it slows down Support’s ability to respond to other customers.
The connection is being refused by your origin server, this is not an issue with Cloudflare nor a cloudflare error screen.
@hi110, if you’ve tried from another network and are still seeing the same issues, I suspect that one is also being blocked. As shown by Support, the root issue involves a service not owned by Cloudflare. After you contact the ISP or the customers internal IT support team and troubleshoot further, please do share what you find.