There isn't a quick way to block all QQ chat messaging at one time. The QQ official web site (http://www.imqq.com), doesn't list the server IP address(es) information for where the QQ Chat communicates or connects. On examining packets which were captured on a connection to a QQ chat, Blue Coat noticed that it connects servers sz[1-9].tencent.com, qq.com, and then follows with dynamic IP addresses.
The causes include the following:
Follow these steps to resolve the issue.