As you have Zone Alarm, delete *ALL* programs in it. Each program will then have to request permission again to access either the Local Area Network or the Internet, so that you will know what is transferring data across the LAN.
Surface Pro (2017) vs Surface Pro 4
20 groundbreaking 3D animation techniques
How to mine Bitcoin on Mac
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.