consider the song address of background music (online music). Some music has sound when it is auditioned online, but it can't be played if the address is put into QQ space. Please change the valid song address: Music Box → Background Music at the top of the space, move the mouse to that song name → Edit appears, enter a new song address in it → Save, and then click the play button to the right of the song name to audition. If there is no sound, continue to change other song addresses;

If the problem is still unresolved, it may be related to the network or computer at that time. Please check whether your local network is in good condition first, and turn off anti-virus software, Internet assistant and firewall. I suggest you clear IE browser:

Open any webpage and click Tools →“Internet Options at the top of the webpage.

①IE6. browser: click "delete Cookies", "delete files" (checked before "delete all offline content"), "clear history" → finally click "OK" below.

②IE7. browser: On the general page, click Delete → Delete All (check the box before "Also delete files and settings stored by add-ins") → Yes, and finally click OK below.

③IE8. browser: Click "Delete" (remove the check in front of "Keep favorite website data" at the top) → "Delete", and finally click "Confirm" at the bottom.

if the problem persists, I suggest you click Start-Control Panel-Add and Remove Programs at the lower left of your computer, uninstall QQ music, find out the folder where QQ music was previously installed, and then completely delete the remaining files. Log in to the website /portal_v2/static/player.html to download a new QQ music player and try installing it in a different path. (For example, if you installed it on disk D before, install it on disk E this time). At the same time, it is suggested that you uninstall all your QQ software (and delete all installation files and folders), log in and download the software you need, and try to reinstall it.