@eskimo Thanks, I will check my questionnaire whether selects the suggestted choice.

@eskimo How long does it usually take to receive a response? I have resubmitted my request twice.

@DTS Engineer Hi, thanks for replying. Yes, your understanding is correct. You also could think the device is a Wi-Fi accessory, the application could get data from the device. Once the phenomenon occurs, the application always loss UDP package. We can't find the document to reset or check network status by coding. Could you share the API about Network caching strategy? Or any other helpful suggestion about this. Thanks for your advice in advance.