Recaptcha was working, now it isn't

Topics: Controls
Nov 30, 2013 at 10:01 AM
Recaptcha was working fine until this afternoon, when I found out about it by receiving some comment spam. I know it was tested when the blog was set up just a few weeks ago. Since the initial spam the blog has been a free-for-all and I have received several other pieces of spam, which strongly suggests it was working until just now.

The extension is still enabled correctly and the API keys appear to be correct. After restarting the app pool a few times and disabling/re-enabling, Recaptcha just won't show up. The log doesn't show any errors. How do I find out why Recaptcha has disappeared from both the comment and contact forms?