Captcha problem Magento Admin Panel

Question

I have enabled captcha. From my admin panel I now have the problem that it keeps showing an invalid captcha message even when there is no captcha at the Admin Panel login page.

How can I fix it?

Answer 1

There is a possibility to enable CAPTCHA for the Admin Panel in System > Configuration > Advanced > Admin > CAPTCHA and if you have enabled it (by accident) this could be a cache issue. So try the following.

1. Flush all Magento Cache before logging in (including your browsers cache); or
2. Try another browser to login

To manually delete all chache use FTP or SSH to delete the following directories (if present)

[your Magento install dir]/includes/src/
[your Magento install dir]/media/css/
[your Magento install dir]/media/css_secure/
[your Magento install dir]/media/js/
[your Magento install dir]/var/cache/

IMPORTANT: Don't delete the entire includes/ media/ and var/ directories, only the subdirectories I mentioned above!

If this doesn ́t help check the core_config_data table in your database to see the value for admin/captcha/enable. If the value is 1 then Captcha for Admin is enabled. You could change it to 0 to disable it.

IMPORTANT: Always make a backup of your database before making any changes!

• Jaya chandra: In my case, it was permission issue on "pub/media/captcha/admin/38b8e0af5c21fe278c1b5a1f720a0738.png", after permission issue resolved.

Answer 2

My issue is the backend 'web page isn't available'.

So it's better to do by following steps:

1) disable Captcha firstly

mysql> select * from core_config_data where path like '%captcha%';
mysql> update core_config_data set value=0 where path = 'admin/captcha/enable';

2) use another browser to login backend My Chrome can't use, so i use firefox to open and signin from backend successfully.

3) use magento cache tool to flush all caches, and re-enable captcha by following sql or backend.

mysql> update core_config_data set value=1 where path = 'admin/captcha/enable';

My issues has been fixed. Hope it can help others. For all people has different environment the system, hope my experience just can be a reference.

• Mario M.: I also needed to delete "var/cache/" and dissable the module at "app/etc/modules/"