What do the LED colors on the back of my Hub mean?
When you plug in your hub and connect the Ethernet cable, the LED in the back will flash some pretty colors that are perfectly normal. It will quickly display red as your hub boots up, blink blue for a moment while it connects to the SmartThings cloud, and finally settle on solid green indicating everything is connected and ready to go. All told this shouldn't take more than a few moments and again, is completely expected when connecting the Hub.
If your hub is inactive (offline) however, then the LED on the back of the Hub can give you some insight into where the breakdown might be.
- A blinking blue light means your hub is having trouble connecting to your local network. This is typically a basic Ethernet connection issue. Make sure your Ethernet cable is plugged into the back of the hub securely, and not loose. You can also try swapping the Ethernet cable for another shielded model in case the one you're using is defective.
- A steady blue light means the the hub is trying to connect to our servers. Usually this is a problem with outbound traffic from your network being blocked. Double check your network settings and be sure to open ports 9090 and 443.
- A steady green light means the hub is connected and ready to go. If you have a steady green light and your hub still says it's "Inactive," try restarting the app and contact support if that doesn't clear it up.
- A blinking green light means your hub is in join mode and looking for devices that are trying to connect. Nothing wrong here. The blinking will stop if you back out of the "Connect a Device" screen.
- A double blinking green light means your hub is in Z-Wave exclude mode and looking for a connected Z-Wave device to remove. Again, nothing to get all worked up over.
If you are having difficulties with your hub or devices, first try power cycling the hub. A good old fashioned reboot will often clear up most connectivity issues. Simply unplug the micro USB and disconnect the Ethernet cable for a couple minutes and then plug them back in.
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