Windows 10 PC can't see Mac on network - Mac can see PC

I've spent the whole morning trying to get my windows 10 laptop to acknowledge the existence of my Mac while they are on the same network. The mac can see the PC and connect to it, but from the PC side the mac is invisible.

Notes:

• I have a windows 10 laptop connected to the same network as my office Mac.
• I have file sharing enabled on both devices and am able to see & connect to the laptop's shared folders/files from the mac without any trouble.
• I can see the mac and access folders on other macs in the network
• My windows laptop is able to see other devices on the network, but not my mac.