For those using Push notifications in Moodle 2.6 you should upgrade to the last version of the plugin.
Also, you should change the Airnotifier URL and port Settings to:
URL: https://messages.moodle.net
Port: 443
For those using Push notifications in Moodle 2.6 you should upgrade to the last version of the plugin.
Also, you should change the Airnotifier URL and port Settings to:
URL: https://messages.moodle.net
Port: 443