I rent furnished apartments and I need to check remotelly through internet if the modems or routers are online. That way I win some time to fix the problem, otherwise I am told by the renter at the moment he needs it.
The ideal situation would be a very simple internet panel with all of our modems and routers in it. Here we can check if ours apartments are online or offline. so we can check daily the status of them just opening the panel .
If it is possible to add to the panel the functionality of an automatic check that triggers an email in case one is offline, then much better.