The ERR_NETWORK_CHANGED error code, like the name suggests, happens if your network connection was changed while the page was being requested. For example, when switching between WiFi networks.
If this happens frequently, the most common answers I see online tell you to do things like restart your router, reset your network settings, or check your proxy settings.
In any case, the error indicates that YOUR network changed, so it’s unrelated to our hosting, or anything you do on our hosting.
It tells me that there is an issue with your network connection or your router. If your website was not working, you also wouldn’t be able to reach it over a VPN.
I have no idea, we’re not ZeroSSL. I don’t know how their check works, so I don’t know why it says what it says.
We have our own SSL check you can also try. Simply go to your hosting account, click Manage next to your domain, and then go to SSL Certificates.
SSL certificates can take up to an hour to take effect on our hosting. There is no cache you can clear, and it’s unrelated to DNS, you just need to wait for our servers to apply the changes.
As for the whole ZeroSSL thing: if you’re happy with how it works right now, please don’t let me tell you what to do. But please be aware that we also provide free SSL certificates, which is actually integrated with our hosting so it’s a lot easier to use.