Website not loading on Wi-Fi but works on mobile data and VPN

What is the name of the domain?

What is the error number?

No error number shown – the site just doesn’t load on Wi-Fi.

What is the error message?

No specific error message – the site fails to load on Wi-Fi networks, but works fine on mobile data and VPN.

What is the issue you’re encountering

I recently connected my site to Cloudflare. It loads perfectly on mobile data and through VPN, but does not load at all on any Wi-Fi networks. I’ve tested it on multiple devices and multiple Wi-Fi networks. The problem seems to be with how Cloudflare routes traffic over certain ISPs.

What steps have you taken to resolve the issue?

Checked and confirmed correct DNS and SSL settings on Cloudflare

Contacted my hosting provider (Hostinger), who confirmed no issue on their end

Tried clearing cache, different browsers, and devices

Used VPN – site loads fine

What are the steps to reproduce the issue?

Connect any device to a Wi-Fi network

Try to open https://decentclocks.com

The site fails to load

Switch to mobile data or VPN — the site loads immediately

Duplicated here