After update to Versión 2.06+ Build 150831when I try to check updates through ComfotUpdate it appears the following message:

No server answer
It seems that the ComfortUpdate server is not responding. Please try again in few minutes or contact the LimeSurvey team.

I need to access to Internet through a proxy server then I´ve configured it in the file /application/third_party/http.php
var $proxy_host_name="proxy.domain.net";
var $proxy_host_port=3128;

After that I have the same issue.

Then as previous versions I´ve configured it in the file /application/config/config-defaults.php
$config ="proxy.domain.net";
$config = 3128;

After that and with the debug activated appears the followin message:

Use of undefined constant proxy_host_port - assumed 'proxy_host_port'

/var/www/educacion/cau_ce/encuestas/application/models/UpdateForm.php(926)

914 private function _performRequest($getters, $CREATE_NEW_COOKIE_FILE=FALSE)
915 {
916
917 if(( extension_loaded ("curl") ))
918 {
919 if( isset($_REQUEST) )
920 $getters .= "&access_token=".$_REQUEST;
921
922 $ch = curl_init($this->_getProtocol().Yii::app()->getConfig("comfort_update_server_url").$getters);
923
924 if($this->proxy_host_name != '')
925 {
926 $proxy = $this->proxy_host_name.':'.proxy_host_port;
927 curl_setopt($ch, CURLOPT_PROXY, $proxy);
928 }
929
930 if($CREATE_NEW_COOKIE_FILE)
931 curl_setopt($ch, CURLOPT_COOKIEJAR, $this->path_cookie );
932 else
933 curl_setopt($ch, CURLOPT_COOKIEFILE, $this->path_cookie );
934
935 curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
936
937 $content = curl_exec($ch);
938 curl_close($ch);

Somebody can help me?

Thanks for advance

thank you for reporting, it will be fixed in the next release.

If you want to quickly debug it by yourself, just open the file /var/www/educacion/cau_ce/encuestas/application/models/UpdateForm.php
and change the line :
to :
(just added the $this)

Thank you very much. It works fine.