Do you encounter the problem that your Apple device does not receive notifications?

You can try the following:

• Turn on push notifications in the message centre of the Apple device. 
• The firewall of the modem prevents connection with APNS (Apple Push Notification Server). Open listening ports on the router, see Apple's support site. https://support.apple.com/en-us/HT203609 

If you have any additional questions, you can always contact us via this website. 

Please make sure to clearly state your question and complaint so we can help you properly.