I had this problem for a long time with my previous configuration which had Linn Akurate DSM connected to Windows 10 core. I even bought new NIC to my PC (Intel I210) and disabled the integrated NIC on motherboard. I was able to make it quite stable but always when you update NIC drivers, problems might still appear. I still use the same ADSM but now with QNAP NAS running the core and I’ve had zero problems with this configuration.
Anyway, you should try to fiddle with advanced NIC settings. You can find these by right clicking My Computer on desktop -> Manage -> Device Manager -> Network adapters. From there, select your network adapter, right click and open Properties. Now navigate to Advanced tab.
From there, disable all power saving features like Green Ethernet and Energy Efficient Ethernet. I also disabled Interrupt Moderation and raised the Receive and Transmit buffer values. This helped for me but I can’t say for sure it will help for you, give it a try.