I also could not make it work forever … did not see the <script src=’https://www.google.com/recaptcha/api.js’></script> and / or <div class=”g-recaptcha” data-sitekey=…. in the source code of the form generated from the word press and contact form 7.
Rechecked keys , permissions, … still nothing.
Thinking that one of the plug-ins was messing it somehow I disabled them all one by one but still no luck.
Then I tried a different theme and bingo recaptcha worked.
Back to Atahualpa (3.7.24) and it did not work again.
Resetting ALL theme options fixed it. I’ve just had to configure Atahualpa again.
My guess is that some very old option, hack or other mess was doing this.
