Two ways you can do it ... up to you which you choose.
1. Increase the ’Failed Login Attempts’ number to a stupidly large number in the Manager configuration settings (under the ’User’ tab).
2. Comment out the code that generates the warning in the weblogin.processor.inc.php (found in assets/snippets/weblogin/) - look for the following lines:
if($failedlogins>=$modx->config['failed_login_attempts'] && $blockeduntildate>time()) { // blocked due to number of login errors.
session_destroy();
session_unset();
$output = webLoginAlert("Due to too many failed logins, you have been blocked!");
return;
}
Hope that helps,
Garry