Thread

Just upgraded from 2.6.1 to 2.8.1 fortunately just on a localhost server. When trying to access the control panel I get “Disallowed Key Characters”.

Have searched about but can’t find a solution.

The path looks like this

<a href="http://localhost/backend/?/cp/login?return=">http://localhost/backend/?/cp/login?return=</a>

In config.php

$config['uri_protocol'] = 'AUTO';

My htacess file -

<IfModule mod_rewrite.c>
        RewriteEngine On
        RewriteBase /

        # Removes index.php from ExpressionEngine URLs
        RewriteCond %{THE_REQUEST} ^GET.*index\.php [NC]
        RewriteCond %{REQUEST_URI} !/system/.* [NC]
        RewriteRule (.*?)index\.php/*(.*) /$1$2 [R=301,NE,L]

        # Directs all EE web requests through the site index file
        RewriteCond %{REQUEST_FILENAME} !-f
        RewriteCond %{REQUEST_FILENAME} !-d
        RewriteRule ^(.*)$ /index.php/$1 [L]
</IfModule>

Any suggestions would be appreciated.

David

+1 form me - I have same error after upgrading from 2.1.3
after setting

$config[‘uri_protocol’] = ‘AUTO’; from $config[‘uri_protocol’] = ‘PATH_INFO’;
I’m getting login screen, striped from any styles and after trying to login with correct credentials - it redirects on the very same login form with filled inputs

My only stupidity, forgot to change the htaccess file after I had re-named the system folder.