diff --git a/phpgwapi/inc/class.egw_framework.inc.php b/phpgwapi/inc/class.egw_framework.inc.php
index f84975cec1..78e73f9e28 100644
--- a/phpgwapi/inc/class.egw_framework.inc.php
+++ b/phpgwapi/inc/class.egw_framework.inc.php
@@ -996,7 +996,13 @@ abstract class egw_framework
 		}
 		elseif ($GLOBALS['egw_info']['user']['apps']['admin'])
 		{
-			return html::a_href(html::image('phpgwapi', 'update', lang('Automatic update check failed, you need to check manually!')),
+			$error = lang('Automatic update check failed, you need to check manually!');
+			if (!ini_get('allow_url_fopen'))
+			{
+				$error .= "\n".lang('%1 setting "%2" = %3 disallows access via http!',
+					'php.ini', 'allow_url_fopen', array2string(ini_get('allow_url_fopen')));
+			}
+			return html::a_href(html::image('phpgwapi', 'update', $error),
 				'http://www.egroupware.org/changelog', null, ' target="_blank" data-api-version="'.$api.'"');
 		}
 		return null;
diff --git a/phpgwapi/lang/egw_de.lang b/phpgwapi/lang/egw_de.lang
index f46137122f..19544c503e 100644
--- a/phpgwapi/lang/egw_de.lang
+++ b/phpgwapi/lang/egw_de.lang
@@ -4,6 +4,7 @@
 %1 file	common	de	%1 Datei
 %1 is not executable by the webserver !!!	common	de	%1 ist nicht ausführbar durch den Webserver !!!
 %1 proxy of %2	common	de	%1 beauftragt von %2
+%1 setting "%2" = %3 disallows access via http!	admin	de	%1 Einstellung "%2" = %3 verbietet den Zugriff über http!
 %1 to sync	groupdav	de	%1 zum synchronisieren
 %1choose an other directory%2<br />or make %3 writeable by webserver	common	de	%1Anderes Verzeichnis auswählen%2<br />oder %3 geben Sie dem Webserver Schreibrechte für dieses Verzeichnis.
 %1egroupware%2 is a multi-user, web-based groupware suite written in %3php%4.	common	de	%1EGroupware%2 ist eine, in %3PHP%4 programmierte, webbasierte, Mehrbenutzer Groupware Suite.
diff --git a/phpgwapi/lang/egw_en.lang b/phpgwapi/lang/egw_en.lang
index d689913a4c..76754753c4 100644
--- a/phpgwapi/lang/egw_en.lang
+++ b/phpgwapi/lang/egw_en.lang
@@ -4,6 +4,7 @@
 %1 file	common	en	%1 file
 %1 is not executable by the webserver !!!	common	en	%1 is not executable by the web server!
 %1 proxy of %2	common	en	%1 proxy of %2
+%1 setting "%2" = %3 disallows access via http!	admin	en	%1 setting "%2" = %3 disallows access via http!
 %1 to sync	groupdav	en	%1 to sync
 %1choose an other directory%2<br />or make %3 writeable by webserver	common	en	%1Choose an other directory%2<br />or make %3 writable by web server.
 %1egroupware%2 is a multi-user, web-based groupware suite written in %3php%4.	common	en	%1eGroupWare%2 is a multi-user, web-based groupware suite written in %3PHP%4.
diff --git a/setup/check_install.php b/setup/check_install.php
index ed9e89991f..f8c4941f22 100644
--- a/setup/check_install.php
+++ b/setup/check_install.php
@@ -112,6 +112,13 @@ $checks = array(
 		'error' => lang('%1 is set to %2, you will NOT be able to upload or attach files bigger then that!','post_max_size',ini_get('max_post_size')),
 		'change' => 'post_max_size = 8M'
 	),
+	'allow_url_fopen' => array(
+		'func' => 'php_ini_check',
+		'value' => 1,
+		'verbose_value' => 'On',
+		'error' => lang('%1 setting "%2" = %3 disallows access via http!',
+			'php.ini', 'allow_url_fopen', array2string(ini_get('allow_url_fopen'))),
+	),
 	'session' => array(
 		'func' => 'extension_check',
 		'error' => lang('The session extension is required!')