Wifi or Ethernet, how do I know?

[patseguin]

I have a Mac mini and have had it on WiFi. I finally got around to running a network cable and connected it. How odd I know if my computer is using my ethernet or wifi? I see them both listed as connected and each has a different IP address. Do I need to disable WiFi?

 

[satcomer]

Yet type disconnect it the System Preferences->Network pane,Advanced button and select the network stack you want on that Mac!

You can also change the Network stack to top level you want Mac to connect too!

 

[techwarrior]

Wired is generally faster than wireless, less interference, etc. But WiFi is necessary for hand-off functionality.

I run both on my Macs. As @satcomer suggests, the Advanced settings for networks allows you to set priority. I set Ethernet as top priority over WiFi and that works quite well.

 

[hobowankenobi]

Quick tip: Whichever interface is on top of the list in the preference pane is the interface in use. With the pane open, and both on/active, unplug the ethernet cable. Watch them switch positions. Plug back in, and watch them switch back.