[Plugin: Skt NURCaptcha] doesn't work for me – returns spurious errors

When that error message is displayed, it means that Google’s reCAPTCHA server returned an error message coded as ‘incorrect-captcha-sol’. Skt NURCaptcha plugin just sends the response typed by the user to that server which compares it to the challenge shown in the challenge box and answers back with an ‘is_valid’ flag set and the error message (if flag’s value is ‘false’). No changes are made by the plugin to the user’s response string nor to the challenge, not even to the server’s answer.

So, this issue is not generated by the plugin, but by the reCAPTCHA’s server. Sorry.

Thanks for responding. But wouldn’t that mean that everyone using your plugin wouldget the same error?

Everyone using any plugin that calls Google’s reCAPTCHA’s server is subjected to that server rules. For some reason your WordPress installation is sending that server an invalid response.

The fact that only you reported such a problem may be due to some conflict in your plugins combination.

Skt NURCaptcha plugin’s main routine overrides entirely the ‘register’ case on main ‘switch’ @ wp_login.php – we fetch the ‘login-form-register’ hook. This means that you may experience some problems if you install another plugin which also needs to customize those same lines.

If you send to my mailbox a list of your active plugins and the name of your template I’ll try to recreate your plugin’s environment to see if any conflicts come out. So, after that, maybe I can tell you exactly what to do to correct that peculiar problem.