When we suddenly got many emails from new users and potential users saying they cant register to the forum because the Captcha image is missing, and we knew that we had made no recent updates / upgrades to our site, we knew the problem was external and had to be fixed quick.
The cause was due to Google recently changing the location of the Captcha server.
To other Joomla 2.5 users this means editing /plugins/captcha/recaptcha/recaptcha.php
Change:
const RECAPTCHA_API_SERVER = "
api.recaptcha.net
";
to:
const RECAPTCHA_API_SERVER = "
www.google.com/recaptcha/api
";
Problem solved! Our apologies to our users that were affected by this during the weekend.
We dont like using Captcha, but if we don't, then the forum gets filled with hundreds of unwanted spam messages.
