Will this work? (Reboot modem)

[JDRoberts]

First things first: the SmartThings hub v2 has no WIFi capability. None. What it does have is the ability to stay on power on batteries for a few hours and to run a few things locally using the zigbee and zwave protocols when internet is not available. But the only code that runs is the official smart lighting app and a couple of pieces of smart home monitor. So, no, it cannot talk to anything over your local WiFi network, not even things that have official integration like the harmony hub or the Phillips hue bridge. So that idea isn’t going to work.

Local Processing in Hub V2

Continuing the discussion from What's the deal with Nest?: Correct. I was answering this question below in the global sense. i.e., There will always be the possibility of various benefits available to Official Device Handlers and SmartApps that are not available to un-certified Community Developed ones. At the moment, the local processing benefit is inapplicable to Nest in either case. I’m not sure ST has guaranteed that community developed SmartApps/Device Types will be included in local processing right after certification. Yes, it may be included down the road, and this is not yet clear on how or what the process is to enable community developed stuffs to run locally.

Also, while the Internet is down, the SmartThings mobile app cannot talk to the SmartThings hub. Technically, that would be possible, but it’s not the way smart things designed their architecture. Your mobile app talks to the smart things cloud and then the ST cloud talks to the SmartThings hub.

That said, there are multiple ways you could get a similar result to what you’ve described. First, you could use a Wi-Fi switch that runs locally, just don’t run it from smart things.

Or, you could use a zigbee or Z wave pocket socket which is eligible to run locally with smart things and in advance have set up a minimote to operate that switch using the official smart lighting app. That should continue to be available to you locally even if your Wi-Fi is down, because it will be using the Z wave or zigbee protocol.

Or you could look at some of the several projects that people have done to be able to reboot the router when smartthings is down. Following thread discusses several different approaches.

SmartThings trigger power cycle of modem when offline?

Hey everyone, I have a quick question, and maybe the more experienced users could help me out. This morning, I noticed that my internet was down. I power cycled my centurylink modem and all was well. This got me thinking about automating the process. Is something like this possible? Something (Smartthings, or something else) detects that external internet is not accessible. Trigger Smartthings to power cycle my modem, which is plugged in through a smart plug. I have a v1 hub right now so I don’t think this is possible since it has to have an internet connection to do pretty much anything. But, I’m considering upgrading to a v2 hub. Since this new hub can execute some events even when offline, could this be possible? Thanks!

So…you can’t get ST to use wifi when the Internet is down–ST never uses wifi. But you can either use a local protocol that smartthings does use, and control the switch with a minimote. Or you can use a Wi-Fi switch that will run locally, but that might not integrate with smartthings while the Internet was down. Lots of choices once you change the problem definition to just focus on the end result rather than the specific protocol.