Windows Ethernet Settings Trigger Latency Despite Normal Speed Tests, With 2 Power Options to Disable
Updated
Updated · MUO - MakeUseOf · Jul 13
Windows Ethernet Settings Trigger Latency Despite Normal Speed Tests, With 2 Power Options to Disable
3 articles · Updated · MUO - MakeUseOf · Jul 13
Summary
Wired Windows connections can stutter during calls, gaming and page loads even when speed tests look normal, because the problem is latency rather than throughput.
Energy-Efficient Ethernet under IEEE 802.3az and the "Allow the computer to turn off this device" option can push adapters into low-power idle, adding wake-up delays when traffic resumes.
Device Manager is the main fix point: disable Energy Efficient Ethernet or Green Ethernet, uncheck the power-off setting, then restart and retest the activity that exposed the pauses.
Speed & Duplex should also be set to Auto Negotiation, since a forced value such as 100 Mbps Full Duplex can cap link performance regardless of adapter capability.
If stutter remains, install the latest manufacturer driver and check cables, router or switch ports, failing hardware, or possible ISP issues.