Ethernet Fast But Wi-Fi Slow?
A fast Ethernet test is good news. It usually means your provider and plan can deliver speed to the home, while the slowdown is happening inside your Wi-Fi network.
Most Common Causes
- The router is at one end of the home, in a cabinet, basement, or utility room.
- The device is connected to a weaker band or distant access point.
- Walls, floors, appliances, mirrors, or neighbouring networks are reducing signal quality.
- The router is older and cannot handle the plan speed or number of active devices.
The Test Pattern To Look For
- Ethernet fast, router-room Wi-Fi fast, weak-room Wi-Fi slow: coverage problem.
- Ethernet fast, all Wi-Fi rooms slow: router or Wi-Fi settings problem.
- Ethernet fast, one device slow: device hardware, adapter, or settings problem.
Best first fix
Do not switch providers if Ethernet is strong. First test Wi-Fi room by room, then choose between router placement, mesh, or a wired access point.
When To Buy Gear
- Use a router upgrade when every Wi-Fi room is mediocre and the router is old.
- Use 2-pack mesh when one floor or side of the home is weak.
- Use 3-pack mesh for larger homes, multiple weak rooms, or three floors.
- Use a wired access point when Ethernet can reach the problem room.
Turn this into a room-by-room diagnosis
Run the free WiFiCheckup test beside your router and in the problem room. If you want the results saved, the $9.99 report emails you the room health diagram, likely cause, and recommended fix path.
- Free speed and room test
- $9.99 emailed report
- Gear and provider guidance