On my local network I was only to see the pc's and shared folder after entering the name of ip-address of the pc I wanted to investigate.
From the main screen, choose Add. After entering an ip-address and klicking Query, you will see the domain and name of the computer you are looking for. If not, you may not have a proper connection to the network. If ok, the computername will appear in the list. And then you need to scan the machine for shared folders (use mouse-right) and choose Scan as user. Use the correct name and password for that computer and voila!

This worked perfectly, although also not with all my computers.

Regards,

Stefan