reCAPTCHA 2.0 works for everyone but this one user

I am posting this to see if anyone has had a similar experience with reCAPTCHA 2.0 and how you went about resolving it. Here is how I have implemented it: 1. Render the widget via JavaScript 2. Disable submit button once widget is rendered 3. When user check checkbox, send value of g-recaptcha-response textarea to server via ajax 4. Server verifies response and returns {success: true} 5. Enable submit button This setup has been working fine for everyone since I implemented it last week until we got a complaint from South America. I wish I had more details to share but it seems that when the user clicks the checkbox, the animation just keeps rotating endlessly. Has anyone experienced this issue or something close to this? It seems to me that: 1. JavaScript is enabled as widget was rendered correctly and submit button was disabled. 2. Content could be loaded from google.com as widget was rendered. 3. Google Code could net execute to (or hangs) when trying to compute/obtain g-recaptcha-response Any help or suggestions would be greatly appreciated. -- You received this message because you are subscribed to the Google Groups "reCAPTCHA" group. To unsubscribe from this group and stop receiving emails from it, send an email to recaptcha+unsubscribe@googlegroups.com. To post to this group, send email to recaptcha@googlegroups.com. Visit this group at http://bit.ly/1dkFnYd. For more options, visit http://bit.ly/P65DvS.