[Elecraft] Fool proof kill switch = deadman timer?

[Michael Adams]

I have my cable modem and router on a UPS.

However, I parsed the initial request as something different: even with my UPS, sometimes my cable modem connection drops; and sometimes my router gets wonky for unknown reasons, and a reset is required to clear the situation.

An ideal kill switch would be able to test for connectivity (to the network at large, if not to the remote session specifically), and trigger if it's lost and not-reestablished in a timely manner.
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Michael Adams | mda at n1en.org