The LED indicator flashes twice on repeated means you fail to connect to the server.
1. Make sure the Internet connection is normal. You can use your phone or PC to connect to the
Internet, and if you fail to access, please check the availability of the Internet connection.
2. Maybe your router has a low carrying capacity. The number of devices connected to the router
exceeds its maximum value. Please check the maximum number of devices that your router
can carry. If the number of connected devices exceeds the maximum value, please delete
some devices or change a lager router and try again.
3. Please contact your ISP and confirm our server address is not shielded:
cn-disp.coolkit.cc (China Mainland)
as-disp.coolkit.cc (in Asia except China)
eu-disp.coolkit.cc (in EU)
us-disp.coolkit.cc (in US)
If none of the above methods solved this problem, please submit your issue via help & feedback
on the eWeLink App.
Shenzhen Sonoff Technologies Co., Ltd.
English
Common Problems
Fail to pair Wi-Fi devices with eWeLink APP
1. Make sure the device is in pairing mode.
The device will automatically exit the pairing mode if not paired within 3mins.
2. Please turn on the location service on your mobile phone and give the permission.
Before choosing the Wi-Fi network, the location service should be turned on and the permission
is given. Location information permission is used to obtain Wi-Fi list information. If you tap
"Disable", the device will not be added.
3. Make sure your Wi-Fi network runs on the 2.4GHz band.
4. Make sure you entered a correct Wi-Fi SSID and password, no special characters contained.
A wrong password is a very common reason for pairing failure.
5. You may get the device close to the router for a good signal transmission while pairing.
Wi-Fi devices "Offline" issues
Please check the following issues by the Wi-Fi LED indicator status:
The LED indicator blinks once every 2s means you fail to connect to the router.
1. Maybe you entered a wrong Wi-Fi SSID and password.
2. Make sure your Wi-Fi SSID and password don't contain special characters, for example, the
Hebrew, Arabic characters. Our system can't recognize these characters so that fail to connect
to the Wi-Fi.
3. Maybe your router has a lower carrying capacity.
4. Maybe the Wi-Fi signal strength is weak. Your router is too far away from your device, or there may
be some obstacles between the router and the device so that the signal transmission is blocked.
5. Be sure that the MAC of the device is not on the blacklist of your MAC management.
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