Protection has been added to the websites hosted at Zone to limit the number of queries to wp-login.php and xmlrpc.php scripts. The purpose of the restriction is to protect the website from bots that try to guess passwords and cause excessive load on the server.
Using the default setting, the wp-login.php and xmlrpc.php scripts are allowed to make 6 requests per IP per minute. All subsequent requests per minute will receive a response from the server Error 429: Too Many Requests.
If you wish, you can remove this setting from your server.
In order to remove the settings lo into My Zone control panel and in Webhosting management under Webserver -> Main domain settings -> modify -> Apache directives ->in the add directive block window add following directive block:
<IfModule mod_security2.c> SecRuleRemoveById 70005 70003 </IfModule>
The 429 error code may not always come from a server-side limitation. An application, such as a security plug-in, may also return a response with this code.