The Lock Must Handshake with Google?
Besides all the other problems previously mentioned, what happens when your ISP is down, or in other words telecommunications is no longer available? I need a good new home security and lock system. But nope. Even if it is something as good as 99.999 % of the time, what back in telephone engineering days was called the 5 nine's, if other links in the chain do not meet your standards, you can expect to be locked out.