If your DHCP server and NAT live on the ISP server it use to be very common for the DHCP server to stop if the internet link was down.
If the power didn’t go down but the DHCP server did tablo had functionality until the tablo IP lease renewal. Thus many offloaded the DHCP server onto a different router.
There is usually a difference between the ISP router uplink being down and an ISP node more removed being down. On some ISP routers you use to be able to plug the ISP router up link into a free input link and make the router think the link was good but a remote ISP node was down.
I grew up in the land of tornadoes before cable TV. Everyone had TV antennas. It was always fun to go outside after the storm and count how many antennas were bent in half.
I prefer a barometer and a storm cellar. When the barometric pressure hit 950 MB I ran for the storm cellar. The antop antenna can join Dorothy in the Land of OZ.
Really! You should have a better contingency plan than “I’ll just watch my tablo” …if investing in generators, another ~$100 for a 24" TV - because you didn’t run your coax to your primary TV, next to your tablo, for emergencies shouldn’t be an over reach.
If that’s part of your big picture plan - if only a handful have power from generators… is TV going to be the primary source for life saving information?
Well, no it all pivots on the adjective!? OK, where’s the documentation?? It may/does work… for some, for a period of time - officially tablo and from a support perspective you need an internet connection. Claiming an incomplete (partial) internet - where’s this documented??
I imply no offense, however, I don’t see a pivot, just a statement from the OP, to which I disagreed.
The documentation you requested may, or may not exist, however, my experience is real, whether it’s officially documented by the manufacturer, or not.
Humorous note about adjectives…
I can say I’m almost 6 feet tall.
Ignoring the adjective, I’m 6 feet tall, but that’s not true.
I wish it were true, but it’s not.