I've had problems where my garage door openers don't appear to be sending the push notifications properly to my ios device. Sometimes they're just delayed (sends anywhere between immediately to a couple of hours later), but sometimes it will just send the open or close notification but not both. It certainly isn't an internet issue as a push notification does usually send, but as I said sometimes not both and sometimes is delayed. I have multiple iphones on the same account and they all have the same issue with it. And, both of my two garage door openers have the same issue. This is a serious security issue as I depend on the notification to know if the garage door opener opened without mine or a family member choosing to open it.