SmartThings operation is OK when there is no internet connection (feature idea)


(Võ Thanh Minh) #1

SmartThings operation is OK when there is no internet connection.

I think, when there is no internet access certain parts of the ST is OK

  • Devices connected to the Hub by z-wave,
  • Devices connected to the hub by the Local Network (LAN)

Example: the lights is on when motion sensor is active: it work when there is no Internet. Because Motion Sensor and Switch using z-wave by connection


Sorry, no, that is not how the SmartThings architecture works. It’s true that there is a Z wave controller inside the SmartThings hub, but SmartThings still requires it to check in with your cloud account for many activities.

At the present time, the only thing that can run when the Internet is down are “smart lighting” automations using the official feature that include only devices with device types that are eligible to run locally.

Basically all custom smartapps and all custom device type handlers and a number of official device type handlers are processed in the cloud. All routines are processed in the cloud. All the Smart apps listed in the marketplace in the official mobile app are processed in the cloud.

In addition, the official smartthings mobile app uses the cloud to talk to the hub, not your local Wi-Fi. So if your Internet is down, you cannot use the mobile app at all.

So if you have a motion sensor Which uses a stock device type handler and you use a smart lighting automation to have it turn on A zwave switch which uses a stock device handler, that will probably work if your Internet is down.

But if you set up the same functionality with the same two devices using a routine, that will not work when the Internet is down.

Also, none of the ST integration for Devices connected by LAN will work when the smartthings cloud is not available. So you will have no control from smartthings over your Phillips Hue bridge, for example, if the Internet is not available, even through a smart lighting automation.

Technically, all of that could happen, it’s just not the way SmartThings is designed. It’s primarily a cloud-based system.

(Võ Thanh Minh) #3

I know smartthings device by control from the smartapp on the cloud computing account. but if, provides synchronization the scenarios(smartApp) to hub ST to control devices it will make the system more stable throughout when short time the internet is down.


If you are saying that you would like to see local operation as a future development plan for SmartThings, many people would like to see that. But it does not work that way now.

You will find much discussion of this in the following thread:

(Võ Thanh Minh) #5

@JDRoberts thanks. maybe I will look for many things in this