The ’406 Not Acceptable’ error is an HTTP status code meaning that the requested resource is not available in a format that would be acceptable to the client. This might happen because of a faulty or erroneous script in your website code or because of inappropriate configuration.
Here are some steps you may find helpful in solving the error:
1. Check your Script: One possible reason could be that your website script is producing output that is being identified as unacceptable or harmful by the server. Make sure to inspect all your website scripts (like PHP and JavaScript codes) for correctness.
1. .htaccess Control: Make sure there’s no improper rule set in the .htaccess file that might restrict access. Try renaming or moving the .htaccess file to see if it resolves the problem.
1. Disable Mod Security: Apache uses an application firewall called Mod Security which can sometimes trigger the 406 error. Disabling it (temporarily for testing) can help identify if this is the cause.
1. Content Negotiation: Check your website’s configuration to verify that it allows content negotiation. This means that the server can supply different versions of a resource and lets the client specify which version to use.
1. Request Headers: Examine the headers sent from the client to the server. They might include parameters that the server cannot meet.
1. File/Folder permissions: Double-check the file/folder permissions on your server. Ensure your permissions settings are not preventing access to a resource.
1. Review Error Logs: Regularly review your web server error logs. They can help pinpoint the cause of a 406 error.
Remember it’s always recommended to perform a backup before any modifications to your server configuration. If in doubt, it’s advisable to seek the help of a professional administrator or your hosting provider. In case you get overwhelmed or stuck, it’s better to ask for professional technical support.
