One,

This problem mainly occurs under the firewalls of Rising and Jinshan. If the firewall is not closed during the installation, it is useless to close the firewall again, because the prohibition rules have been saved in the firewall software. In this case, you need to manually add running rules in the management interface of the firewall.

If WIN comes with its own firewall, just add 36984 port in the firewall settings of the control panel.

Second, in addition to the firewall, there is also the possibility that the host itself prohibits the client from accessing it (specifically, the online neighbors cannot access it). In this case, this may happen even if there is no firewall on both sides. First, solve the problem of smooth mutual visits between online neighbors, and then refer to the firewall problem.

Usually it can be done.

You can check QQ 120555429BG remotely if you have any questions.