If you are receiving a 406 Not Acceptable error on your website, it is likely related to the mod_security setting on your account.

By default, mod_security is turned on for all hosting accounts.  There are some programs and software that you can use on your account that will require that mod_security be turned off, otherwise the 406 error will appear.  We can turn off mod_security for each domain by request.  If you would like to have mod_security turned off to resolve a 406 Not Acceptable error, please send an email to This email address is being protected from spambots. You need JavaScript enabled to view it. or submit a ticket through the Help Desk with your request.  Be sure to include the domain you want mod_security turned off for. If sending an email, please include for verification purposes your original cPanel password or the last four numbers of the credit card that we have on file.

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2013-04-17 11:11 pm
Yesterday I did exactly what I'm trying todo today (edit css files through my Joomla 2.5.9), but without getting the 406 errors.

I don't want to disable mod_security, why was it working yesterday?
n/a Points
2014-03-11 10:30 am


I am trying to add an article in my Joomla Admin Panel. Suddenly I came up with this error. I have disabled mod_security on this Website: karate-sport-schule.ch but still I am getting this error.

Please verify this case. I could no longer work inside my Joomla Admin.


2,342 Points
2014-03-11 2:59 pm
If you have attempted to disable it in the Modsec Manager and are still receiving the error, I recommend contacting technical support as they will be able to make changes to your account that I am unable to make via this public message board.
n/a Points
2015-01-30 11:25 pm

Everytime I try to log in to my word press admin it comes up with 406 not acceptable message, what should i do?

17,314 Points
2015-01-30 11:44 pm
Hello Hannah,

Sorry for the problems with logging in to WordPress. It is highly probable that your account is undergoing a brute force attack. You can try the options provided in our WordPress wp-login.php brute force attack article. Otherwise, you should contact our live technical support team for further assistance. Their contact number is at the bottom of this page.

Kindest regards,
Arnel C.

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