Why Wi-Fi and Ethernet speed tests differ

A test includes the local connection

A browser test travels through your device’s local link before reaching the internet. Over Wi-Fi, signal conditions and shared airtime can affect that link. Ethernet removes many wireless variables, but its adapter, cable and port can still limit speed.

Compare fairly

Use the same device and test destination where possible. Pause background traffic. Test over Ethernet, then over Wi-Fi near the router, and finally at your usual desk. Record the connection method and position with each result. Repeat to see whether a gap is persistent.

What the difference suggests

A reliable wired result and inconsistent wireless results point toward investigating the local Wi-Fi setup. Check placement, obstacles, interference and the device’s wireless capabilities. If wired results are also poor, check the device link and router before widening the investigation to the provider or test destination.

Improve the weak link

Move the router into an open position and test before buying equipment. A mesh node or extender needs a good connection back to the router; placing it in an already poor-signal area may not help. A wired connection can be useful for a stationary device, but does not fix every remote service issue.

For configuration guidance, see Apple’s recommended router settings. Continue with Wi-Fi bands explained.