Unless I misunderstand what you are trying to accomplish, a Mac can use both Wi-Fi and Ethernet network adapters at the same time for two different networks.
By default, macOS is designed to automatically prioritize the network connection with the highest priority, which is typically the Ethernet connection. However, you can configure your Mac to use both Ethernet and Wi-Fi connections at the same time by adjusting the network settings.
Here's how to configure your Mac to use both Wi-Fi and Ethernet connections simultaneously:
- Connect your Mac to both the Wi-Fi and Ethernet networks.
- Open the "System Preferences" app and click on "Network".
- In the left-hand column, you'll see a list of all available network adapters. Select the Ethernet adapter.
- Click on the "Advanced" button in the bottom right corner.
- Click on the "TCP/IP" tab.
- Click on the "Renew DHCP Lease" button to obtain a new IP address for your Ethernet connection.
- Next, click on the "DNS" tab.
- In the "DNS Servers" section, click on the "+" button and enter the IP address of your Wi-Fi router.
- Click "OK" to save the changes.
Now, your Mac should be able to use both the Wi-Fi and Ethernet connections at the same time, and automatically choose the best connection for each task.
