Well i recently got a free ssl certificate from Cloudflare for my site (advanteachvr.com) but it is not working, everytime i try to access via https i get this : ERR_SSL_PROTOCOL_ERROR or ERR_CONNECTION_REFUSED.
I´m hosting my web on a raspberry pi and i’m using wordpress, and i installed really simple ssl, and it says : “Detected possible certificate issues
Really Simple SSL failed to detect a valid SSL certificate”.
On Cloudflare it says active certificate, and ssl report from ssllabs shows grade “A”.
I´m using chrome (Versión 70.0.3538.67 (Build oficial) (64 bits)) and Win10 and i tried with Microsoft Edge too,but i keep getting the same error i don’t understand…
Now i tried to access from a diferent network and it works. The problem seems to be using my home network but i don’t know why.
Maybe you’re accessing it using your internal IP so hitting the local SSL cert and that isn’t quite right, whereas we’re hittng the Cloudflare IP with their good cert and SSL config.
If your crypto mode is ‘flexible’, say, Cloudflare may be connecting to you without SSL but serving viewers outside network with SSL, hence the difference in what we see.