51 cloud invoicing shows that the device is not online

There may be many reasons why 51 cloud invoicing shows that the device is not online. Here are several possible situations:

1. The device is not connected to the network: If the device is not connected to the network, then 51 Cloud Invoicing cannot detect the device, so it will show that the device is not online.

2. The device is not turned on or the software is not started after being turned on: If the device is not turned on or the 51 cloud invoicing software is not started after being turned on, it will also cause the device to be offline.

3. Network failure: If the device is connected to the network, but the network fails, the device will also be offline.

There are many ways to solve these problems:

1. Check whether the device is connected to the network: You can check the network status of the device to ensure that the device is connected to the network.

2. Restart the device: You can try to restart the device to ensure that the device has been turned on normally and the 51 cloud invoicing software has been started.

3. Check the network failure: If the device is connected to the network, but 51 Cloud Invoicing still shows that the device is not online, you can check whether the network is faulty, or try to change the network environment.

In the process of using 51 Cloud Invoicing, if the device is not online, it needs to be investigated and solved according to the specific situation. At the same time, it is recommended that users check the network connection and software running status of the device before using 51 Cloud Invoicing to avoid unnecessary problems.