Cloudflare page SSL error in BT wifi

I have a cloudflare page with the url: when I first created it - it worked absolutely fine in my wifi originally (I use BT) but a couple of weeks later it randomly started saying:

This site can’t provide a secure connection uses an unsupported protocol.
Unsupported protocol
The client and server don’t support a common SSL protocol version or cipher suite.
And most other people I knew that also used BT also seemed to have a similar error when accessing my page.

What browser and version are you using? Can you find out from the browser what certificate is being returned? Do you have any BT safe browing/web protect/parental control features enabled that may be redirecting the site to a warning or other page?

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I don’t think so - no parental controls or admin - and any browser I use seem to give the same response

Hi there,

I’m sorry that you’re experiencing issues. Can you please submit a ticket so we can take a closer look at this?