Hi there,
This behavior may occur if all the following conditions are true:
-NetBIOS over TCP/IP is not turned on (enabled) on one or more computers in the workgroup.
-The Computer Browser service is not started or is turned off on one or more computers in the workgroup.
You can try the troubleshooting steps from here https://support.microsoft.com/en-us/topic/you-cannot-access-shared-files-and-folders-or-browse-computers-in-the-workgroup-with-windows-xp-9db8b9e5-7c90-35de-a2ca-c3eede1ea026.
If the above steps are helpful you can try the below steps and see if they are helpful.
-Go to Control Panel.
-Click Network and Internet.
-Click Network and Sharing Center.
-Click advance sharing settings.
-Under Change sharing options for different network profiles, click the "down arrow" under Private. Hover to HomeGroup connections, and then click "Allow Windows to manage homegroup connections (recommended)".
-Click Save changes.
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