Connection Issues: Others cannot join the game I have opened.

[CrazyBoom]

need help!!

Scenario 1: Computer A start a game, and others can only join through a Steam invitation link to enter the game.

Scenario 2: Computer A opens a dedicated server, but Computer A's game cannot connect to that server.

Scenario 3: Computers A and B are in the same network environment, both with firewalls turned off. When Computer B opens a room, Computer A can join and play normally. However, when Computer A invites Computer B to join the game opened on Computer A, upon Computer B entering cave, the connection is lost, and Computer B cannot reconnect to the game.

 

Methods attempted but unsuccessful:

 1.Swapping Steam accounts between Computer A and Computer B.

2.Reinstalling the game.

3.Resetting network interface cards and routers.