Stop Mac from connecting through wifi

[iwegge]

Hi. We have a Qnap 1685, and it's connected to our wifi router and to two Mac computers through 10gigE. We want the two Macs to stop connecting to the NAS through Wifi and only use the 10GigE connection. Can anyone tell me how? We want the NAS and the computers to stay connected to internet.

[dolbyman]

Put the 10GbE connection on a separate dedicated network

e.g.
NAS in regular network
192.168.1.0/24

NAS for the 10GbE segment
192.168.10.0/24

use fixed IP's for the 10GbE networks (either separate ones per adapter or activate a software defined switch)

then mount the shares on your Mac's with the IP's in the 10GbE segment

[Bob Zelin]

of course, dolbyman is correct. Stop using DHCP addresses for the 10G ports. If you want to spend zero money, plug in each Mac 10G port to one of the 10G ports on the TS-1685.
So for example -
QNAP Eth 5 192.168.2.3 Mac #1 10G port 192.168.2.11
QNAP Eth 6 192.168.3.3 Mac # 2 10G port 192.168.3.11
click on GO> Connect To Server> smb://192.168.2.3 or smb://192.168.3.3, and you are now connected to a dedicated 10G port on the QNAP.

Don't want to go thru that much trouble ? Buy a $299 QNAP QSW-M408-4C 10G switch - stick the QNAP 10G port into one of the ports of the switch, and the 2 computers 10G ports into the switch -
assign the QNAP 192.168.2.3, the first computer 192.168.2.11, the second computer 192.168.2.12 and everyone now connects over 10G via - GO> Connect To Server> smb://192.168.2.3

But you say "but I want wired internet on my Macs and they only have the one 10G port ". Well - go to Amazon and purchase a Belkin USB-C to Ethernet adapter for $24, and now you have a wired 1G ethernet port for your Mac.

See - simple. TWO networks !

Bob Zelin

[Sevenfeet]

There's an easier way to do this. Often certain services in MacOS are tied to Wifi (like login authentication via Apple Watch) even if the Mac has a wired Ethernet connection. But you can force the Mac to use wired Ethernet by default if you have to keep wireless active.

Open System Preferences and select "Network"

You should see your active network connections. I would think that Wifi is at the top of the list. The Mac will default to whichever network is first on this list.

Below the list there is a "+", a "-" and a gear icon. Click the gear icon and select "Set Service Order" from the pull down menu.

You'll see a new window which will allow you to drag the name of your wired 10G connection to the top of the list.

Close the window. Close the Network System Preference by pressing the "Apply" button. You should be in business with 10G wired Ethernet as the default.