In order to prevent malicious duplication, the current device restrictions are as follows:
1. After the mobile phone is registered under the same ip, it cannot be registered again. It will prompt that Your device is registered (you can register again if you switch the network and change the ip)
2. In the same ip environment, even after uninstalling and then downloading and installing, the registration will still prompt Your device is registered
3. If two or three mobile phones are in the same wireless network (same ip), only one mobile phone can be successfully registered, and the other mobile phones will prompt Your device is registered, unless you turn off the wireless and use your own traffic (the traffic will be different from the wireless IP) before each device can be registered.