How to retreat? I can retreat from other groups, but if there is a group, I ca n’t retreat. What is going on?

If your number can use login and receiving messages normally on other computers without dropping, this situation may be related to the settings and network restrictions of your machine locally. It is recommended that you: (1) This machine settings limit restrictions Essence Maybe you have some firewall software installed on this machine, which is caused by too many restrictions. It is recommended that you set the firewall to the default value or turn it off. It may also be caused by the incorrect date and time settings of your machine. It is recommended that you set it to the current date and time. (2) Restrictions on the setting of the route. There are many types of routing and many functions. Maybe there are some bandwidth restrictions or protocol restrictions, resulting in frequent routing and logging in. This method, many enterprises have done this to restrict colleagues on QQ on the Internet. It is recommended that you contact the company’s network management or relax the routing settings (3) the network is unstable, it is recommended that you check whether your computer’s network card is on whether the network connection is displayed normally