1. In response to the country's Internet clean-up campaign, video links and BT seeds were labeled as "piracy" and "pornographic and vulgar" and could not be played.

　　
piracy

2. Server upgrade or system maintenance.

　　
System maintenance

3. The added resource files are relatively unpopular and need to be transcoded immediately, which leads to the mistaken belief that Thunder Cloud Broadcast cannot be used for a long time.

　　
Long transcoding time

4. The resource site where the added video link or uploaded BT seed is located has few resources or the resources have expired, causing Thunder Cloud Broadcast to be unavailable.

　　
Resource expired

5. "This account has been locked due to abnormal login and playback behavior" appears. The response from Xunlei customer service is "The account is locked because you have logged in too many IP addresses. You can change the password and then do not share the account. Wait 48 hours before proceeding. Just log in and use it.” So don’t share it with too many people.

　　
Abnormal playback behavior

The above is the solution for what to do if Thunder Cloud Play cannot be used. I hope it will be helpful to everyone. Thank you for reading this article!