412 Precondition Failed. It means that the access to the target had been denied.

Causes

the server does not meet any one of the preconditions that the requester put on the request header fields.

Fixes

Step 1: Enter .htaccess file

Enter to your .htaccess file and disable this security feature by using

    1. SecFilterEngine off
Step 2: Contact NET

You may contact NET Support for more information.