Follow along with the video below to see how to install our site as a web app on your home screen.
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If you enable remote access to your DVR, you can access it from any network as if you were on your LAN. Then you'd be able to configure it freely.
It is, correct, but any device registered before the discontinue date will still continue to function - you simply won't be able to register new devices.
You could also use No-IP or DynDDNS as alternatives. At the moment, Hik-Connect doesn't give you enough configuration options I'm afraid, it's essentially EZVIZ