ST v2 - what can the hub do w/o power and only local LAN access?

[JDRoberts]

Right now almost nothing runs locally.

One smart app, smart lights, and only for specific device types. Even the official integrations with other lan devices like the Phillips hue bridge won’t run when the Internet is out. Basically your hub wants to go to your cloud account in order to see if it’s authorized to talk to those devices. Every single time.

And you have no UI over the lan. If you don’t have an Internet connection to your hub, your phone app will not talk to it. that’s certainly possible (Staples connect does it), it’s just not how SmartThings does it.

Smartthings is still very much a cloud-based architecture. They are moving in the direction of more local processing, but they’ve taken maybe the first of 25 steps to get there.

For more detailed information, see the following topic:

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.