1. The Trojan virus destroys the necessary components or files of QQ Music, causing QQ Music login failure and failure to log in.

2. The Windows system firewall (or other security software) adopts a policy of blocking the updated QQ Music program from connecting to the network, causing QQ Music to be unable to connect to the network normally. Please log in to make up for it.

3. There is a problem with the local network connection (for example, a slow network will cause this problem) or the version information of the QQ program is incompatible during the update process

1 .The most likely cause of QQ Music login failure is Trojan virus. If you find this phenomenon on your computer, please immediately use Kingsoft Antivirus to conduct a comprehensive system scan to clean up the Trojan virus rooted in the computer. Then uninstall QQ Music and reinstall the program.

2. If the Windows system firewall (or other security software) adopts a policy of blocking the updated QQ Music program from connecting to the network, please check the local firewall settings and remove the restrictions on QQ Music.

3. If there is a problem with the local network connection, you need to contact the relevant agency for resolution.