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YoLink Hub

  • Question: Why can I not connect the Hub to WI-FI?


Firstly, YoLink Hub only supports 2.4 GHz WI-FI, it does not support 5.0 GHz WI-FI; you will need to switch to 2.4G SSID.

You can refer to the following video for the WI-FI connection guide

Secondly, do you have a wired ethernet connection in your home? You can optionally connect your YoLink Hub to your router (or switch connected to the router) with the included Ethernet patch cord.

When the middle blue light is blue, it means the Hub is online. The Wi-Fi configuration can be set after the Hub is online via the internet cable.


  • Question: After a couple of days testing the set up, the Hub dropped the connection three times


Please kindly confirm the usage environment of your network. Are there any restrictions? Is there a network administrator? How does it work in normally?

Any questions, please kindly contact us at service@yosmart.com


  • Question: Why can I not connect my Hub to the internet?


Could you please kindly confirm the following information?

1, Please refer to the LEDs on the Ethernet jack on the rear of the Hub. When the YoLink Hub is connected to the router port through a network cable, does the indicator light on the network port work normally (green light is always on, yellow light is flashing)?

2, If the green light is always on, yellow light is flashing, please kindly power off the YoLink Hub, and re-connect it to the power and the router. After re-starting, does the YoLink Hub connect to the internet?

Any questions, please kindly contact us at service@yosmart.com


  • Question: How many sensors can one Hub accommodate?


One YoLink Hub supports 200 YoLink devices in a real test.

And you can add one or more YoLink Hub to expand signal coverage.


  • Question: Can I have more than one Hub per account?


Yes, you can have one or more YoLink Hub in one account. Each Hub must be configured with a network (wired or 2.4G Wi-Fi).

And with multiple Hubs, you can easily manage devices in multiple locations on the same YoLink App account.


  • Question: Can I use other manufacturer’s sensors or devices on the Hub? Or Will the YoLink sensors connect to another LoRa gateway?


YoLink is based on LoRa and YoSmart, it is an independent smart home system. YoLink Hub is the only central controller gateway for the rest of the YoLink devices.

YoLink Hub does not work with other brands of sensors, and YoLink devices cannot be used with other brands of gateways.

We will support API connection, which can make other platforms compatible with YoLink series products.


  • Question: I just purchased a YoLink Hub. I am out of Ethernet ports. What kind of splitter or adaptor to I need to connect the device? Will a simple cable splitter work or do I need a Network Switch?


Any splitter or additional switch can work, or you can use the 2.4G Wi-Fi connection for the Hub. Check the following link for the splitter from Amazon https://www.amazon.com/dp/B00A128S24


  • Question: Does the YoLink Hub have a MAC address?


YoLink Hub has a MAC address. You can find the Device EUI of your YoLink Hub within your YoLink App account, remove the number 1603, you will get the final Mac address of your YoLink Hub.

For example, the device EUI of one YoLink Hub d88b4c1603000011. You need to remove the number 1603 from the EUI. Then the MAC address for this YoLink Hub will be d88b4c000011. 


  • Question: All sensors and devices go offline. Is there a way that they reconnect themselves automatically after the power or internet service outage ends???


Relating to YoLink Smart devices offline, please do not worry, they are functional.
Among YoLink devices the Hub is the only one that connects to the internet. The rest of the devices automatically connect to the Hub by a digital “handshake”
In order to save energy, the devices only send signals to Hub once a while, (for different devices, the spacing interval is different. for example, it is every 4 hours the water leak sensor sends signal to the Hub; it is every half hour the smart plug sends signal to the Hub) as they don’t detect any status changes. But once they detect anything happening, they immediately send the signals to the Hub.

The reason that it shows “offline” is only meant to remind you that the Hub doesn’t connect with the internet now or before.

The reality is those sensors and plugs don’t need and never directly connect to the internet.
That is why some YoLink devices can work and have automation even without internet once they are set up by YoLink Control.

So, the devices will automatically reconnect to the Hub within 4 hours. But if there is any status changes, they will reconnect immediately.

Or you can press the set/power button on devices, then it will connect to the Hub immediately.


  • Question: What will happen when my daughter turns off the Hub?


Firstly, you need to power the YoLink Hub using the supplied power adapter to the power outlet; and you need to connect the Hub to the router by wired or 2.4G Wi-Fi connection.

Secondly, if the Hub is powered off or loses the internet connection, the YoLink Hub will display “OFFLINE” in YoLink App. And the YoLink App will push the Hub-offline message.

Thirdly, when the Hub is offline, you cannot use the YoLink App to control or monitor other YoLink devices, and you will not receive notifications.


  • Question: What port(s) does this device use? My firewall is blocking it from connecting to the outside world. Is this device unable to function on LAN only? Not sure why it’s necessary to connect to WAN and send my personal info to your servers…


Firstly, the port is 80/443(HTTP); 8001(TCP)

Secondly, the YoLink Hub needs a network (WAN) to work properly; and the local area network (LAN) will not work.
The functions of App remote control, Alexa/Google Assistant/IFTTT Integration, YoLink App Notification, Email Notification, SMS Notification are all based on the network.
Except for account registration, we do not collect other private information of users. The Hub is only based on WAN transmission and encrypted device communication data.


  • Question:  Does your Hub have cellular backup in case primary wired or wireless network is not available?


YoLink Hub does not have cellar backup network. It supports both the Wi-Fi and hard-wired Ethernet connections. We provide the most affordable price for the Hub and the cellular backup module is more expensive than our Hub’s selling price. We have found that some customers add a cellular ethernet adapter or cellular hotspot to backup the YoLink Hub’s network.


  • Question:  Hi, I have a concrete block house, upstairs and downstairs totaling 2800 square feet. Can I use Hubs together on one Wi-Fi network to control 8 door and window sensor, 4 motion sensors and 2 alarms from YoLink to secure my house? Will the concrete walls effect the range or should I put in more Hubs?


YoLink Hub reaches a long transmit distance with YoLink devices more than 1,000 feet in the open air, more than 300 feet indoor and efficiently decreased attenuation through physical barriers, like concrete walls. Two Hubs ought to be enough to cover your house, but you may need to adjust the locations of the Hubs.

And there is no limit of number of sensors can be support by one Hub in theoretically. One YoLink Hub supports 200 YoLink devices in real test.


  • Question: Is the Hub required during pairing a siren and water leak sensor for YoLink Control?


The Hub is not required when you are pairing the siren to the water leak sensor. If you only want the siren to be controlled by the water leak sensor and do not require the smartphone notifications, you do not need the Hub.  We call this YoLink Control protocol. One siren can be only directly paired with a maximum 128 water leak sensors. But if you use the Hub, siren, and water leak sensors together, if there is water leak detection the Hub will trigger the siren, and there is no limit to the number of water leak sensors that can be added to the system if used with the Hub.


  • Question:  Will this work with a 5GHz wireless network?


YoLink Hub only works with 2.4GHz Wi-Fi network, but it can be connected through the ethernet cable to the wired network, to make the YoLink system more reliable.


  • Question:  I have four Wi-Fi networks, how do I switch to 2.4G?


We have a couple of ways to do it. The simple way is: if you can connect the Hub to the router through the ethernet cable first, when it goes online (The middle blue LED flashes), then go to the Hub’s detail page, you can type in the 2.4GHz Wi-Fi SSID and password. After that, you can disconnect the cable and the Hub will connect to the cloud through the Wi-Fi network you specified.

The App’s smart config for setting the Wi-Fi sometimes automatic select the 5GHz network, so in the Wi-Fi settings, you can disable your 5GHz Wi-Fi temporary from the router, the App can then only select available Wi-Fi which is 2.4GHz. After the Hub is connected to the 2.4GHz Wi-Fi, you can re-enable the 5GHz Wi-Fi.


  • Question:  I have two Hubs, if one fails, do I need to pair devices with the new one?


YoLink Hub is transparent Hub, which means if one YoLink Hub fails, your YoLink Devices will connect to the other Hub. YoLink Hub only works as the database to connect YoLink devices to the internet and YoLink Cloud. And you do not need to pair other devices with the Hub.

It’s very simple, you just need to connect your new Hub to your router through the ethernet cable and power it on. This is one advantage of YoLink vs other systems. When you change the Hub, don’t need to re-pair or re-connect other sensors again. It is very good for community and building solutions too, if customers have multiple Hubs, some Hubs fail or lose power, if there is any other Hub that is connected to the internet, the system will still work reliably. Just power up the new Hub and connect it to your router; you do not need to change anything to the YoLink devices.


  • Question:  How is the sensitivity of the Hub, expressed in dBm?


The receiving sensitivity is -123dB. Transmission is 20dB. The total wireless budget is 143dB.


  • Question:  How much current does the Hub draw, how many milliamperes (mA) from a 5 volts supply?


The Hub draws average less than 100mA current from the 5V power supply. The peak current can reach up to 350mA.


  • Question:  I discovered today that my YoLink Hub which is connected by Ethernet cable is consistently flashing green; the yellow light on the Hub is also flashing. Does the flashing green light indicate a problem?


Your Hub is in a completely normal working state. The flashing green LED indicates the Ethernet connection is working properly. The yellow light on the Hub flashes to indicate a normal power supply to the Hub. Only no lights indicate a problem with the Hub.


  • Question:  Can it use 220V power?


The YoLink Hub works with 100V-240VAC. The input of YoLink Hub is 5V DC (Maximum Current: 1A).


  • Question:  Is connecting the Hub to Wi-Fi only for set up or ongoing? Can I use my iPad for that as I don’t have internet?


The Hub can be connected to the internet through ethernet cable or Wi-Fi. If you use your iPad or iPhone as hotspot to provide Wi-Fi to the Hub, and the Hub connects to the internet, everything will work well.


  • Question: I found the MAC for the Hub. However, I cannot find the MACs of the sensors


Only the YoLink Hub is connected to the internet through ethernet cable or Wi-Fi. The sensors and YoLink devices do not use the Wi-Fi; they use the new wireless technology of LoRa which provides the longest range and lowest power consumption compared to other wireless technologies like Wi-Fi, Zigbee, ZWave. So you won’t see any other sensors have a MAC address in your router. Whenever the Hub is connected to the cloud, all the sensors are reliably connected to the cloud. You can add more than 300 sensors in one Hub and they will not affect your Wi-Fi network and will not be affected by crowded Wi-Fi networks, too.