diff --git a/modules/install/lang/en.php b/modules/install/lang/en.php
index a02ecef31..3794a5172 100644
--- a/modules/install/lang/en.php
+++ b/modules/install/lang/en.php
@@ -31,6 +31,7 @@ $lang->install_checklist_desc['php_version_warning'] = '[Recommend] Rhymix recom
 $lang->install_checklist_desc['permission'] = '[Required] Please create a \'files\' directory under the installation path and change its permissions to 777.';
 $lang->install_checklist_desc['xml'] = '[Required] XML Library is needed for XML communication';
 $lang->install_checklist_desc['session'] = '[Required] PHP Session must be available, and \'session.auto_start\' must be off in order to use the session.';
+$lang->install_checklist_desc['free_domain_warning'] = 'If you are using a free subdomain provided by the hosting company (e.g. ID.hosting-company.com),<br />Please clear your browser cookies and return to the previous screen.';
 $lang->install_checklist_desc['iconv'] = 'Iconv should be installed in order to convert between UTF-8 and other language sets';
 $lang->install_checklist_desc['gd'] = 'GD Library should be installed in order to use functions to convert images';
 $lang->install_checklist_xml = 'Install XML Library';
diff --git a/modules/install/lang/ko.php b/modules/install/lang/ko.php
index dfc914bd8..2017f09e8 100644
--- a/modules/install/lang/ko.php
+++ b/modules/install/lang/ko.php
@@ -31,6 +31,7 @@ $lang->install_checklist_desc['php_version_warning'] = '[권장] Rhymix는 PHP %
 $lang->install_checklist_desc['permission'] = '[필수] Rhymix 설치 경로에 files 디렉토리를 생성하고 퍼미션을 777로 바꾸어 주십시오.';
 $lang->install_checklist_desc['xml'] = '[필수] XML통신을 위하여 XML 라이브러리가 필요합니다.';
 $lang->install_checklist_desc['session'] = '[필수] PHP 세션을 사용할 수 있어야 하며, php.ini 설정에서 session.auto_start = off 여야 합니다.';
+$lang->install_checklist_desc['free_domain_warning'] = '웹호스팅 업체에서 제공하는 무료도메인(예: ID.cafe24.com)을 사용하신다면<br />브라우저 쿠키를 비우고 이전 화면으로 돌아가서 설치를 다시 시작해 주시기 바랍니다.';
 $lang->install_checklist_desc['iconv'] = 'UTF-8과 다른 언어셋의 변환을 위한 iconv설치가 필요합니다.';
 $lang->install_checklist_desc['gd'] = '이미지변환 기능을 사용하기 위해 GD라이브러리가 설치되어 있어야 합니다.';
 $lang->install_checklist_xml = 'XML 라이브러리 설치';
diff --git a/modules/install/tpl/check_env.html b/modules/install/tpl/check_env.html
index b61a5d7cc..366c84f37 100644
--- a/modules/install/tpl/check_env.html
+++ b/modules/install/tpl/check_env.html
@@ -20,6 +20,11 @@
 					<td colspan="2" class="error_description">
 						<!--@if($key === 'php_version')-->
 							{sprintf($lang->install_checklist_desc[$key], __XE_MIN_PHP_VERSION__)}
+						<!--@elseif($key === 'session')-->
+							{$lang->install_checklist_desc[$key]}
+							<!--@if(contains('.cafe24.com', $_SERVER['HTTP_HOST']))-->
+								<br /><strong>{$lang->install_checklist_desc['free_domain_warning']}</strong>
+							<!--@end-->
 						<!--@else-->
 							{$lang->install_checklist_desc[$key]}
 						<!--@end-->