Make your Mac prefer Ethernet over Wi-Fi (service order) — via Apple Support
When both Ethernet and Wi-Fi are connected, macOS uses whichever is at the top of its service order. If your Mac keeps sending traffic over Wi-Fi while plugged in, change the order so the faster wired link always wins.
Takes effect right away
How to do it
- Open System Settings > Network.
- Click the … (Action) pop-up menu at the bottom of the list and choose Set Service Order.
- Drag the services into the order you want (for example Ethernet or a USB/Thunderbolt adapter above Wi-Fi), then click OK.
VPN connections can't be reordered; they always take priority over non-VPN connections.
Sources
- Change the order of network services on Mac — by Apple Support
- Source reviewed
- 2026-11-02
- Link checked
- 2026-11-02
- Tested hands-on
- Not by Oddbyte.Me
Oddbyte.Me hasn't tried this on every macOS version, so keep the undo handy.