The problem that VSS cannot be connected in the LAN is that it is "disgusting to open the door ".

This afternoon, when VSS is opened, it is found that the VSS server in the LAN cannot be connected in any way. The started service is started, and the settings of the win7 System in the Local Security Policy are also configured:

 

Later, I checked the complete ing of the LAN and found the problem. Recently, some colleagues added a new office computer, and the machine name and I repeated it. Then I changed the machine name and everything went back to normal.

 

Record it and remind people who encounter the same problem later!