The computers in the same working group can ping and cannot access resources shared by the other party.

See this http://blog.zj.com/d-124433.html for details As I did above, my stubborn computer is doing so well. if it still doesn't work, I suggest you forget it and leave it upstairs. But don't hit others.

The computers in the same working group can ping and cannot access resources shared by the other party.
1: start --Program-- Control panel -- Management Tools -- Computer Management -- local users and groups -- open Guest users under users
2: Choose "start"> "program"> "Control Panel"> "Management Tools"> "Local Security Policy"> "Local Policy"> "user permission assignment ".
Access this computer. 2. "Deny access to this computer from the network" and delete all the items in the computer.
3. If you have an XP system, you can change the following settings: Administrative Tools> Local Security Policies> Local Policies> Security Options
Q: Change the local account sharing and security mode to "classic-Local User Authentication"
4: If the system has a blank password, choose Administrative Tools> Local Security Policy> Local Policy> security option and find "account: Use blank password ".
The local account can only log on to the console.
5. Run the service policy "services. MSC ". Start the "ClipBook server" (Folder server): This service allows other users on your network to see your folder. Of course, sometimes you can start it manually, and then use other programs to publish information on your network.