I am trying to implement FCM xammp server in my google cloud module(endpoint) which i latter deploy it to appengine but am getting the error below when try to call css.connect().
The following addresses failed: 'fcm-xmpp.googleapis.com:5236' failed because java.net.SocketException: Permission denied: connection to (10, [2607:f8b0:4001:c06::bc]:5236,6) denied due to policy
I am trying to implement FCM xammp server in my google cloud module(endpoint) which i latter deploy it to appengine but am getting the error below when try to call css.connect().
Error is
The following addresses failed: 'fcm-xmpp.googleapis.com:5236' failed because java.net.SocketException: Permission denied: connection to (10, [2607:f8b0:4001:c06::bc]:5236,6) denied due to policy