As the topic suggests.
I have this eletromagnetic lock I've installed on my front door with a relay.
It's all working ok, and If the electricity were to go off, the door would unlock.
It disactives from inside with a normal switch and from the outside with a phone that connects to a webclient.
Question is: what if the router isn't working? Am I locked out?
There must be a failsafe solution in this case... like a loopback check on lan.
Any ideas? Thanks