In the location where the camera is installed, there must be a full WiFi signal.You can put your mobile phone in the location of the camera to test whether there is a full WiFi signal
If the WiFi signal is not good, it will cause video transmission jam or the machine goes offline.

1. Summary
Offline issues are mainly judged by LED lamp status. The indicators are:
(1) LED lamp gets off.
(2) The LED lamp is flashing. (flash three times in a second);
(3) LED lamp is on.
The following solutions explain specifically how to resolve each of the three problems.

2.Solutions
2.1 LED lamp gets off.
The camera displays offline on the APP, and the LED lamp is off. Solutions to this issue are as below:
1)Pull down the camera list interface to refresh. And check if the camera display changes to online;
2)Check if the camera adapter gets loosen;
3)Check if the power chord is in good condition( if the chord is too long?It is not suggested
to use over-long power cable; try a phone power cable to see if the issue can be fixed?)
4)Check the circuit, power supply, and voltage is normal(if the voltage is unstable, the camera power is probably in protection status, what is more, the unstable circuit may damage the hardware of camera.

2.2 LED lamp is flashing. (flash three times in a second)
Camera display offline on the APP and camera LED is flashing fast, this issue can be divided into two categories according to camera voice prompt:
First one: there is voice prompt from camera or after restart the camera; the Second one: there is no voice prompt from the camera, even restart the camera; the solutions to these issues are as below:
2.2.1there is voice prompt from the camera or after restart the camera.
In this case, the camera has been reset. The corresponding solution is to send sound-wave from the APP to repair the camera.
2.2.2there is no voice prompt from the camera, even restart the camera.
(1)Check if Wifi username and password have been revised. ( If it has been revised, please repair the camera)
(2)Check to see if your WIFI network is changed to a 5 GHz frequency band.(the camera does not support the 5 GHz frequency band, please use the 2.4 GHz frequency band instead.)
(3)Check to see if the WIFI is hidden. (the cameras do not support hidden WIFI networks.)
(4)Check if DHCP functioning is on in your router. (User must enable DHCP.)
(5)Check to see if the selected WIFI security protocol is WEP. (cameras do not support the WEP security protocol, please change to WPA or WPA2.)
(6)Check to see if the router is connected to too many devices. (commonly, one router can be connected to up to 10 WIFI devices at one time. If there are more than 10, the camera might not be able to successfully connect to WIFI. In this case, users are suggested to restart the router or disconnect some of the WIFI devices.)
(7) Check if the distance between the camera and router is too long.(if Wifi signal is weak, then the camera may get offline, it is suggested to place the camera near router)
(8)Ensure that your router has access to the network.
(9)Check to see if your router has any limitations restricting it from accepting network requests.
(10)Ask the Network operator if they have imposed any limitations restricting it from accepting network requests.

2.3 LED lamp is on.
If the camera LED indicating lamp is in solid blue, and camera display offline on APP, solutions to the issue are as below:
1)Pull down the camera list interface to refresh. And check if the camera display changes to online;
2) Check if there is TF card in the camera. If so, take out the card and restart the camera. ( sometimes, a defective TF card may result in abnormal video storage in the camera, which leads to the camera is offline. It is suggested to use branded TF card,(C6+));
3)Check the camera working condition whether it is too terrible.( electronic device may not work properly in over-cold or hot condition, please use the camera in proper condition)