Have I read the related troubleshooter articles above before posting (which pages?)? Yes
Have I searched the tickets before posting? Yes
Have I read the documentation before posting (which pages?)? Yas
Joomla! version: (2.5.4)
PHP version: (5.2.17)
MySQL version: (unknown)
Host: (optional, but it helps us help you)
Admin Tools version: (2.2.5)
Description of my issue: Honeypot breaks firewall, exactly as described in ticket# 12094. (https://www.akeebabackup.com/support/admin-tools/12094-activating-honeypot-option-broke-the-firewall.html)
I found out about this upon discovering that I could access the administration entry page using the default URL. So I reset the secret URL parameter, then logout to test, and it just redirects to home page. Rename main.php to regain access, tried another secret URL, logout, same thing occurs. So then I jumped onto forum, found the ticket thread mentioned above, switched off honeypot, and then everything is working again. Except of course now there is no honeypot protection.
I have followed your suggestions in that thread, and the problem remains.