plentyland on "[Plugin: Clean Login] A problem with the CAPTCHA image"

Hi,

My site users are saying they can no longer register to the site because they are facing a issue with CAPTCHA verification. I tested this as well once all the details are correctly entered CAPTCHA verification always retu as wrong CAPTCHA.

"CAPTCHA is not valid, please try again"

Can you please look into this issue please?
Thanks.

My site: http://bit.ly/1SR5QM8

https://wordpress.org/plugins/clean-login/

Due to this problem, I had to disable CAPTCHA on my site temporarily. Is anyone else having this problem?

Hi plentyland,

Do you have the GD Library for PHP installed and enabled?

Alberto.

Thanks for your Reply Alberto :) Glad you look into this issue.

Do you have the GD Library for PHP installed and enabled?
I'm not sure about that. Is this relating to web host? Because I changed my hots recently. In my earlier host CAPTCHA was working properly.

Yes, it is. GD lib is mandatory for CAPTCHA generation, and it should be enabled from your hosting.

Alberto.

Thanks Alberto but my host said that GD lib is already activated :(

For some reason plugin retus "CAPTCHA is not valid, please try again" message every time when some one try to register.

Can you please diagnose what's going on?

You can use this site to register and see this behavior: http://bit.ly/1rGyDO4

This site is also has this problem: http://bit.ly/1pQKIy7

In These sites Captcha is not working: http://bit.ly/1rGyDO4
http://bit.ly/1pQKIy7

However in these ones, There's no Captcha problem. User can register to the site without an issue.
http://bit.ly/1SR6uMG
http://bit.ly/1SR5QM8

Can you please diagnose what's going on?
Its wired that Captcha works on some sites but not on others.

It's quite strange, do you have any cache enabled?

Alberto.

Yes, it is very strange :(

This problem happened with this site: http://bit.ly/1pQKIy7 but now it is resolved. No Captcha verification error notification shows.

Only this site has this problem now: http://bit.ly/1rGyDO4
Yes, w3 total cache is enable for this site. I've cleared the cache and tried but no luck. My host use some page speed optimization feature. Wonder that cause this to happen.