Use Ethernet when stability, predictable latency, or maximum local-network performance matters; use Wi-Fi when mobility and convenience matter more.
Step by Step
- Check whether the device has Ethernet or can use an adapter.
- Use a suitable Ethernet cable from the device to the router/switch.
- Windows normally prefers the wired route automatically when connected.
- Compare performance if you are diagnosing a Wi-Fi problem.
- Keep Wi-Fi enabled if you still need wireless connectivity when unplugged.
If That Doesn't Work
- A wired connection cannot exceed the limits of the device ports, cable, router/switch, or internet plan.
- Ethernet is particularly useful for diagnosing whether a problem is specifically wireless.