I have the same problem.

Typing /administrator goes to the custom 404 fine.
Typing /?PASSWORD (the password has no numbers) directs straight to the homepage.

So I have to go in direct to the server and disable jSecure from there so I can get into admin.

Any help please? Using the latest version on Joomla 1.5

Thanks

I use letters and numbers and everything works fine. Joomla 1.5.15.

All sorted now thanks

Hi,

Please use following URL to login in admin area.

www.sitename.com/administrator?keyname

Thanks and Regards,
Bhavin Shah

How did you managed to solve it?

I have the same problem. No matter what passkey I set, it redirects me to the jsecure 404 page.

I did install the latest plugin, I use Firefox 3.5, I only used 4 lowercase english letters as passkey, no numbers, but when I enable the plugin an try to access /administrator/?mypasskey it just redirects me, I can't log in to admin.

I tried everything, but the only method to disable the plugin is to set it to published = 0 on phpMyAdmin. Still, the keyword in the database matches the one I try to use at /administrator/?keyword, but it still not working.

Any ideas?

Key should be letters only so the documentation is wrong to use the term alphanumeric. Look 999 times out of 1000 it is a a L-User error. Perhaps you used a capital letter, you forgot what what you typed or you mistyped.

Either way just get into the back end DB and rip it out and start again or FTP into the /plugins/system folder and rename jsecure.php to jsecure.php.txt then use the usual admin folder.