Once I noticed on one of the computers that nothing was displayed in the network environment, and after selecting “Enable network discovery” in “Control Panel \ Network and Internet \ Network and Sharing Center \ Advanced Sharing Options”, the choice was still on “Disable network discovery”.
The reason for this is that any of the following services are disabled:
Function Discovery resource publication
UPnP Device Host
The list of services can be seen in Control Panel \ System and Security \ Administration – Services.
To solve the problem, you need to specify the type of startup for each service on “Automatic” and restart the computer.
When I turned on the services and rebooted my computer, I noticed that “Enable network discovery” was selected and computers and devices were visible in the network environment.