The LAN working group is inaccessible, and the master is advanced.

What I said upstairs doesn't seem to work...

This is a problem with the computer configuration, and the methods and steps to solve it are as follows:

1. First of all, press "Win + R" on the keyboard to open the "Run" dialog box, and then enter it in the dialog box, as shown in the following figure.

2. Secondly, after completing the above steps, find "server" on the right side of the pop-up rolling service window, and click it, as shown in the figure below.

3. Then, after completing the above steps, change the startup type to Automatic, and then set the service status to "Started" as shown in the image below.

4. Then, after completing the above steps, press "Win + R" on your keyboard and enter in the run box as below screenshot shown.

5. Subsequently, after completing the above steps, in the pop-up window, click "User Rights Assignment" in "Local Policy", as shown in the following figure.

6. Then, after completing the above steps, double-click to access this computer from the network as shown in the image below.

7. Finally, after completing the above steps, remove all options except everyone and click "OK" as shown in the image below. In this way, the paulownia sedan car problem was solved.

I can't see the computers in the workgroup after I connect to the LAN solution:

1. In the online neighborhood, click "Set up a home or small office network" under "Network Tasks".

2. In the "Network" window that opens, you will see the prompt "File sharing is closed, you can't see the network computer and device, please click to change".

3. In the pop-up extension menu, select the "Enable File Sharing and Network Discovery" item.

4. Right-click on the blank space of the window and select the "Refresh" item, you can see other computers in the LAN.

5. There are also situations where different working groups cannot view or access each other normally. If you want to implement mutual shared access, you must modify it to the same workgroup: click on the Start menu, right-click on "Computer" from it, and select the "Properties" item.

6. In the pop-up system interface, click the "Advanced System Settings" button in the upper left corner.

7. In the "System Properties" window that opens, switch to the "Computer Name" tab and click the "Change" button.

8. From the pop-up "Computer Name Change" interface, modify the "Workgroup Name" to the same name, and then you can assign different computers to the same workgroup.

Not in a group, right-click on my computer, computer name - domain change - change to the same workgroup.

You're not in the same workgroup, you can right-click on My Computer, change the computer workgroup in Properties, Computer Name, and add everyone to the same workgroup.

Is there a problem with the IP address setting, don't use a fixed IP, it will be automatically assigned by the router directly.