Here is a more definitive answer using TightVNC.
I've been connecting via my Wifi but it's slow at times.
I wanted to make it faster since my Mac Mini sits on the same desk where my laptop is.
A. make sure your Mac is on and you can control via VNC (see : http://www.howtogeek.com/214220/how-to-access-your-macs-screen-from-windows-and-vice-versa/ for more )
B. make sure you have TightVNC (that's what I use) on your Win10 machine.
Connect your ethernet cable to your Mac and Win10 computer.
On the Mac go to System Preferences...
- Choose the Network (icon) option
- You will see a window which allows you to set up the ethernet and it is probably already configured for you.
Please NOTE I've updated this section for a consistent IP ADDRESS you need to enter the value manually (configure it one time on Mac) so the Mac will use the SAME IP Address every time
Necessity of Manual IP Configuration
The reason we do the manual setup is so when you power down your Mac and power up the next time, you do not get an assigned (random) ip address, but instead it will be set to this same value each time.
You want the same value so you know what to use in the VNC program.
Yet Another Note
When I changed to manual setup then my connection was extremely slow. I couldn't get it to be faster. I switched back to automatic configuration (see next image) and it was faster. However, that means keeping my wifi running on the Mac so I can initially connect get the assigned IP address and then connecting the 2nd time each day over ethernet with assigned ip address.
Try multiple options see what is best for you:
- Get the IP ADDRESS
This is the important part.
Make note of that IP Address starting with 169 in the image.
That is the IP address you will use to connect to the Mac.
That is the effective address of the Mac that your Win10 machine has assigned to the Mac.
Now, I'm assuming that you've set up your Mac so it can be remotely controlled --- I won't go through that here.
Start TightVNC on your Win10 machine
type in the IP Address from above and connect.
- Type in your "connection password" (which you previously set up on your Mac) when prompted and everything should work.
You can see your connection status from Win10 at Settings...Ethernet...Network and Sharing Center...:
When you click Network and Sharing on the left you'll see:
Here's how it will be setup on Win10 side:
Finally, click the Ethernet link in the middle right and you'll see a status and should see more bytes received than sent over time --- that is the remote Mac sending data to your computer via VNC.
Also notice that it shows 1.0GBPS (Gigabit per second = 1000 MBPS)
That's probably much faster than your wireless network and this keeps that traffic off there.
Here's my wifi connection -- notice that it is only about 72 MBPS (about 1/10 of ethernet).