Once every 2 or 3 month, my phone app won't connect to car, and it shows "last seen x hours / days ago". Normally, if the car is sleeping, this message displays for about 10 seconds until the app wakes up the car, and everything is back to normal. Phone key still works and podcasts still works over blutooth. Other things such as live view of sentry mode camera or climate control don't work. When this issue happens, both of my phones will have the same issue, and a reinstall of the app generally fixes it. Any ideas on why this keeps happening?