Go to Extensions tab, make sure the “SimpleCaptcha” extension is disabled. (This is very important, because the reCaptcha extension’s priority is lower than the SimpleRecaptcha!) And make sure the “reCaptcha” extension is enabled and set your own public key and private key properly. You are all set now. Log off from Admin tool and see it from the comment part of the blog post.
- Go to Admin tool, select settings tab, under comments settings, make sure “Use Disqus as a comment provider” is unchecked