1. Open "My Computer", select "Tools" -> "Folder Options" -> "View" on the menu, clear "Use simple file sharing (recommended)" choose.

2. Right-click "My Computer", select "Manage", select "Local Users and Groups" -> "Users", right-click the Guest user, select "Properties", clear "Account has been stopped" Use” option.

3. Click "Start" -> "Run", enter secpol.msc, select "Local Policy" -> "User Rights Assignment" on the left, double-click "Access this computer from the network" on the right, Make sure there is Everyone in it, double-click "Deny access to this computer from the network" on the left, and make sure it is empty.

4. Select "Local Policy" -> "Security Options" on the left, a. Confirm that "Network Access: Local Account Pricing and Security Mode" on the right is "Classic"; b. Confirm that "Microsoft Network Client: Enable digital signatures for communications (always)" on the right is "Disabled"; c. Confirm that "Microsoft Network Client: Enable digital signatures for communications (if the server allows)" on the right is "Enabled" "; d. Confirm that "Microsoft Network Server: Enable digital signatures for communications (always)" on the right is "Disabled"; e. Confirm "Microsoft Network Server: Enable digital signatures for communications (if the server allows)" on the right is "enabled".

5. Restart the computer.

Further:

1. Enable the guest account;

2. Control Panel→Administrative Tools→Local Security Policy→Local Policy→User Rights Assignment, Add the guest account to "Access this computer from the network" and delete the guest account from "Deny access to this computer from the network";

3. My Computer→Tools→Folder Options→View→Remove" Check the box in front of "Use Simple File Sharing (Recommended)";

4. Set up a shared folder;

5. Control Panel→Administrative Tools→Local Security Policy →Local Policy→Security Options, set "Network Access: Best Sharing and Security Mode for Local Accounts" to "Guest Only - Local users authenticate as guests" (optional, this setting can remove the access requirement The dialog box for entering the password can also be set to "Classic - local users authenticate with their own identity" if appropriate);

6. Right-click "My Computer" → "Properties" → "Computer Name" , does your LAN workgroup name, such as "work", appear in this tab? Then click the "Network ID" button to start the "Network Identification Wizard": click "Next", select "This machine is part of a business network, use it to connect to other working computers"; click "Next" , select "Company uses a network without a domain"; click the "Next" button, then enter the workgroup name of your LAN, such as "work", click the "Next" button again, and finally click the "Finish" button Complete setup.

Generally, after the above steps, it can basically be solved. If not, read on:

7. Check whether the local connection is disabled, right-click "Local Area Connection" → "Enable";

8. Turn off the network firewall;

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9. Check whether the domain is enabled, join the domain and check the domain settings;

10. Check whether the server service is turned off;

11. Check Are the local connection IP, subnet mask, gateway and DNS settings correct?

12. "Local Area Connection" → Properties → General, check whether "Microsoft Network File and Printer Sharing" is installed ", "Microsoft Network Client" and TCP/IP protocol;

13. Some LAN games and software must install the NetBEUI protocol. Moreover, there are articles on the Internet saying that in small LANs, the TCP/IP protocol and NWLink IPX/SPX/NetBIOS compatible protocols that Microsoft only supports in WinXP perform unsatisfactory. In small LANs (networks with about 200 computers) NetBEUI is the protocol that takes up the least memory and is the fastest.

Installation method:

①Insert the Windows XP installation CD, go to the "valueaddMsft et etbeui" directory and copy Netnbf.inf to C:\Windows\INF;

②Copy Nbf.sys to C:\Windows\System32\Drivers;

③Start→Control Panel→Network Neighborhood"→"Network Connections"→"Local Area Connection" (this is your current Right-click on the LAN connection in use) → "Properties" → "General" → "Installation" → "Communication Protocol" → "Add", then you can see the "NetBEUI Protocol" item (this item was originally (No), after selecting NetBEUI, click OK.

14. The computer used as a network browsing server cannot obtain the list of computers on the network due to viruses, low configuration, slow operation, and crashes. Updates cause some machines to sometimes not be found in Network Neighborhoods

Solution: The easiest way is to restart various network devices and computers, or close the network on individual computers with the above problems. Browse the server function, the method is as follows:

Disable the Computer Browser service under win2000/XP

15. Patch the system. WinXP has a slow access to Network Neighborhood. This is a problem of WinXP. A bug. When we open Network Neighborhood, the operating system will first search from the scheduled tasks, which greatly affects the access speed. This problem will not exist unless you have installed the SP1 patch.

You can solve this problem manually. Find "\HKEY_LOCAL_MACHINE\

SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\RemoteComputer\NameSpace" from the registry. There is a file named "{D6277990-4C6A- 11CF-8D87-00AA0060F5BF}" subkey, which points to "Scheduled Tasks", just delete it directly.

16. Uninstall the network card driver first, restart and then reinstall it ;

17. Hardware problems, check network cards, network cables, hubs, routers, etc. Before checking, it is best to restart the network equipment (hub, switch, router) to see if it can be solved;

18. Causes of viruses (Trojans). Upgrade the virus database and perform full anti-virus in safe mode.