laravel - Failed to connect to graph.facebook.com port 443: Network is unreachable -


working on facebook application uses fb-sdk in laravel getting "failed connect graph.facebook.com port 443: network" error 2hr.

i authenticating user using js , redirecting long live access token in fb-sdk giving error. here code,:

try {             $accesstoken = $helper->getaccesstoken();         } catch (facebookresponseexception $e) {             // when graph returns error             echo 'graph returned error: ' . $e->getmessage();             exit;         } catch (facebooksdkexception $e) {             // when validation fails or other local issues             echo 'facebook sdk returned error: ' . $e->getmessage();             exit;         }

i want know possible reasons fb-sdk giving error suddenly. there can me out ?


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