iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
To enable Energy Efficient Ethernet (EEE), open Device Manager, expand Network adapters, open the wired Ethernet adapter’s Properties, choose Advanced, select Energy Efficient Ethernet (or a similar EEE label), set it to Enabled, and apply the change. The option is not universal: its name and availability depend on the adapter, driver, and Windows version.
What Energy Efficient Ethernet does
Energy Efficient Ethernet is a power-saving feature for a wired Ethernet link. Intel describes it as allowing a capable device to enter Low-Power Idle between bursts of network traffic, then return to full operating power when data must be sent or received. That makes EEE most relevant to links that spend substantial time idle rather than continuously transferring data.
EEE is negotiated between the two devices at the ends of the cable. Your Windows 11 computer is only one end; the other is normally a switch, router, docking station, or another Ethernet device. Intel’s Ethernet Adapters and Devices User Guide, version 27.3, states that both ends must have EEE enabled for power savings and that both ends must automatically negotiate link speed. Enabling a checkbox in Windows therefore does not guarantee a measurable reduction in power use if the connected network equipment does not also support and enable EEE.
Recommended Free Tools
The transition between Low-Power Idle and full power can add a small amount of latency. Intel documents that trade-off but does not give a universal latency figure. The practical effect depends on the adapter, driver, switch, traffic pattern, and link speed.
#1 Best Overall
- 40 Gbps 2000 Mhz High Speed: The Cat 8 ethernet cable support max. 40 Gbps data transfer and 2000 MHz Brandwith, ideal for gaming and streaming, greatly improving upload and download speed, sound, image and resolution quality
- Excellent Anti-interference: The ethernet cable comes with 4 shielded foiled twisted pairs (F/FTP), pure copper core and gold-plated RJ45 connector, reducing interference, noise and crosstalk, making network speed faster and more stable
- Marvelous Durability: Internet cable wrapped with quality cotton braided cord, which makes the LAN cable stronger and more durable. The test proves that this internet cable can be bent at least 10000 times without broken, very suitable for long-term use
- PoE Supported: All lengths of ethernet cord can support the PoE power supply function except 65ft. You don't need additional power supply when installing a PoE camera, which is very convenient and safe
- Wide Compatibility: With the RJ45 Connector, network cable can be perfectly compatible with computers, laptops, modems, routers, PS5, X-Box and other networking devices. It can also be fully backward compatible with Cat7, Cat6e, Cat6, Cat5e, Cat5
- EEE applies to a capable wired Ethernet adapter, not to the Wi-Fi adapter entry in Device Manager.
- The feature can be absent even when Windows 11 is working correctly.
- There is no generally applicable wattage-saving or performance number for every computer and network.
Before changing the setting
Make the change from the computer that uses the wired connection. Keep the Ethernet cable connected while you configure the adapter so you can immediately see whether the link remains usable.
- Know which entry represents the physical wired adapter. A computer may list Wi-Fi, Bluetooth, virtual switches, VPN adapters, and docking-station interfaces alongside Ethernet.
- Record the current value of any EEE setting before changing it. This gives you a precise rollback point if the connection behaves differently afterward.
- Identify the adapter’s manufacturer and model in Device Manager. This information is useful if the option is missing or if you need the manufacturer’s supported driver documentation.
- Keep access to your network credentials or another way to reconnect. Some adapter power-state changes can briefly interrupt connectivity.
How to enable Energy Efficient Ethernet in Windows 11
- Open Device Manager. Select Start, type Device Manager, and open the matching Windows result.
- Expand Network adapters. Select the arrow beside Network adapters to display the installed interfaces.
- Select the wired adapter. Choose the physical Ethernet adapter used by your cable. Do not select the Wi-Fi adapter or a virtual network interface. If you are unsure, unplug the cable and note which adapter’s status changes, then reconnect it.
- Open its properties. Right-click the adapter, choose Properties, and select the Advanced tab.
- Find the EEE option. Look through the property list for Energy Efficient Ethernet or a driver-specific variant containing EEE. Driver interfaces do not use one universal label, so read the complete property names rather than searching only for an exact phrase.
- Enable it. Select the EEE property, choose Enabled in the value control, and select OK or Apply. If Windows briefly reports that the adapter is restarting, wait for the wired connection to return before testing it.
Intel documents the Advanced tab as one place to configure EEE. Some Intel adapter installations may also expose related controls through Intel PROSet. The labels and available controls are supplied by the adapter driver, so another manufacturer’s interface may look different.
Verify the change without assuming that power savings are guaranteed
Windows does not provide a universal EEE status indicator that proves the connected switch is using Low-Power Idle. Verification is therefore a practical check of the adapter setting and the connection, not a promise of a measured energy result.
Quick wins for a faster PC:
Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →- Return to the adapter’s Properties window, open the Advanced tab, and confirm that the EEE property still shows Enabled.
- Open a site or service that requires the wired connection, or use the network activity you normally perform. Confirm that the adapter reconnects after the setting is applied.
- Check the adapter’s link speed in the status information available on your system. The speed should remain the one negotiated by the link; do not change it merely to make EEE appear to work.
- If the connection drops repeatedly, restore the value you recorded before the change and compare behavior. A rollback distinguishes an EEE-related compatibility problem from a pre-existing network fault.
A successful reconnect shows that the local setting was accepted. It does not establish that the switch or router supports EEE, that both ends enabled it, or that a specific amount of electricity was saved.
Why Energy Efficient Ethernet may be missing
You selected the wrong adapter
Device Manager can list several network interfaces. EEE is normally exposed under the physical wired Ethernet adapter. Wi-Fi, Bluetooth, VPN, virtual-machine, and software-defined interfaces can have different power features and may not show an EEE property. Reopen the list and identify the adapter connected to the Ethernet cable.
Rank #2
- Cat 6 performance at a Cat5e price but with higher bandwidth
- High Performance Cat6, 30 AWG, RJ45 Ethernet Patch Cable provides universal connectivity for LAN network components such as PCs,computer servers,printers,routers,switch boxes,network media players,NAS,VoIP phones
- Jadaol cat6 standard cable support Cat8 and Cat7 network and provides performance of up to 250 MHz 10Gbps and is suitable for 10BASE-T, 100BASE-TX (Fast Ethernet), 1000BASE-T/1000BASE-TX (Gigabit Ethernet) and 10GBASE-T (10-Gigabit Ethernet)
- UTP(Unshielded Twisted Pair) patch cable with RJ45 gold-plated Connectors and are made of 100% bare copper wire, ensure minimal noise and interference
- The unique flat cable shape allows for a cleaner and safer installation. You can easily and seamlessly make the cable run along walls, follow edges & corners or even make it completely invisible by sliding it under a carpet.
The adapter or driver does not support EEE
EEE is optional and adapter-dependent. Intel states that not every adapter supports it, and that a setting can be absent when the feature is unsupported by the device or by that Windows version. Missing text is therefore not, by itself, evidence that Windows 11 is damaged.
The driver does not expose the control
Advanced properties come from the installed driver. A driver can support an adapter while exposing a different set of controls from another driver release or from an operating-system-specific package. Note the exact adapter model and driver version shown in the adapter’s properties, then consult the computer or network-interface manufacturer’s documentation for that combination. Do not assume that installing a generic package will add an option the hardware does not support.
The interface is provided through a dock or another device
When Ethernet comes from a USB dock, monitor, or other external network device, the relevant EEE capability belongs to that device and its driver. The built-in adapter’s Advanced list cannot add a feature to hardware that is not carrying the connection.
The network equipment does not advertise EEE
A local EEE property can exist even when the connected switch or router lacks EEE. Because power savings require both ends to enable the feature and automatically negotiate link speed, the Windows checkbox alone cannot create end-to-end EEE.
The link-partner and speed-negotiation requirements
EEE is a link-level negotiation, not merely a Windows preference. The computer and the device on the other end of the cable must each support EEE, have it enabled, and negotiate a compatible speed automatically. If either end does not meet those conditions, the link can continue to operate normally without entering the EEE power state.
Rank #3
- Designed for Outdoor & Direct Burial Installations – Heavy-duty double-shielded Cat8 Ethernet cable minimizes EMI/RFI interference and delivers stable long-distance performance. Waterproof, anti-corrosion PVC jacket allows safe direct burial and reliable use in outdoor or indoor environments.
- 26AWG for Stable High-Load Networks – Thicker 26AWG conductors provide faster, more stable data transmission than standard 32AWG cables. Ideal for high-performance home networks, gaming setups, smart homes, and data-intensive applications.
- F/FTP Shielding & Hyper-Speed Performance: Cat8 Ethernet cable constructed with 4 shielded foiled twisted pairs and 26AWG OFC conductors; supports bandwidth up to 2000 MHz and data transmission speeds up to 40 Gbps, effectively reducing signal interference and ensuring stable connections. Ideal for low-latency gaming, 4K/8K streaming, and high-speed internet connections.
- RJ45 Connectors & Wide Compatibility: Cat8 Ethernet cable with two shielded RJ45 connectors; compatible with networking switches, IP cameras, routers, Nintendo Switch, modems, PS3, PS4, Xbox, patch panels, servers, smart TVs, and more; works with Cat7, Cat6, Cat5e, and Cat5 devices
- Weatherproof & UV Resistant: Outdoor-rated Cat8 Ethernet cable with UV-resistant PVC jacket; withstands direct sunlight, extreme cold, humidity, and hot weather; anti-aging and durable; Includes 18-month support.
For gigabit Ethernet adapters, Intel recommends Auto Negotiation for link speed. Its EEE guidance also requires automatic speed negotiation. Do not force a speed or duplex value as a routine EEE step. A forced value can prevent the negotiation that EEE relies on and can introduce a separate compatibility problem.
The Tool Desk
Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →If you manage the switch or router, check its own documentation for an EEE or 802.3az control and confirm that the port connected to the Windows computer is configured accordingly. If you do not manage that equipment, ask the network administrator whether the port supports EEE; Windows cannot reveal every capability of a remote link partner.
EEE trade-offs when deciding whether to leave it enabled
| Decision factor | What enabling EEE can mean | What to check |
|---|---|---|
| Power use | A capable endpoint may enter Low-Power Idle between traffic bursts. | EEE support and enablement on both ends of the link. |
| Responsiveness | Transitions back to full power may add a small amount of latency. | Whether your workload is sensitive to small delays and whether behavior changes after enabling. |
| Link stability | The adapter may briefly change power state; some gigabit power-state transitions can cause a short connectivity loss. | Whether the connection returns reliably and whether the problem disappears when you restore the previous value. |
| Compatibility | The setting may have no end-to-end effect if the link partner lacks EEE. | The switch, router, dock, or other device at the far end of the cable. |
| Speed negotiation | EEE depends on automatic link-speed negotiation. | Leave the adapter at Auto Negotiation unless the manufacturer documents a specific exception. |
| Availability | The option may not appear at all. | The exact adapter, driver, and Windows version. |
No general wattage or latency number should be applied to every Windows 11 system. Intel’s documentation describes the mechanism and the possible small latency, while the actual result depends on the complete link.
EEE is not the same as Windows adapter power management
Windows provides PowerShell cmdlets named Enable-NetAdapterPowerManagement and Set-NetAdapterPowerManagement. Microsoft’s documented parameters cover specific adapter power-management functions, including selective suspend and wake-related features. EEE is not listed as a parameter in those cmdlets.
That distinction matters because running a generic power-management command does not substitute for the driver’s EEE property. When the adapter exposes EEE, configure it through the adapter’s own Advanced settings (or the manufacturer’s documented utility). Use Microsoft’s cmdlets only for the power features they explicitly support, and do not present them as an EEE command.
Rank #4
- Cat 8 Speed, Cat 5/5e Value Enjoy Cat 8 Ethernet cable performance at a Cat 5/5e-level value. With up to 40Gbps speed and 2000MHz bandwidth, this high speed internet cable delivers more bandwidth than standard Cat 5 and Cat 5e cables, helping support smooth gaming, streaming, video calls, large file transfers and everyday wired network use.
- 40Gbps Speed, Wide Compatibility This Cat 8 Ethernet cable supports up to 40Gbps data transfer and 2000MHz bandwidth for fast, reliable internet performance. Standard RJ45 connectors are backward compatible with Cat7, Cat6, Cat6a and Cat5e devices, including routers, modems, switches, gaming PCs, PS5, PS4, Xbox, smart TVs, laptops and printers.
- Stable U/FTP Shielding Each of the 4 twisted pairs is individually wrapped with aluminum foil to help reduce crosstalk, noise, and signal interference. Combined with RJ45 connectors on both ends, the U/FTP design helps maintain cleaner signal transmission for a stable and reliable wired network connection.
- Nylon Braided Durability The nylon braided jacket adds everyday durability while keeping the cable flexible and easy to route. Reinforced construction helps the cord handle bending, pulling and frequent plugging, making it a reliable choice for desks, gaming rooms, home offices and long-term network setups.
- 50ft Reach for More Setups The 50 ft length makes it easier to connect devices across rooms, along walls, under desks or around corners. Great for router-to-PC connections, modem-to-TV setups, gaming consoles, workstations, printers and other home network equipment that needs a longer Ethernet cable.
If a script or device-management policy changes adapter power settings, document the EEE value separately. A policy that enables wake or selective-suspend behavior can coexist with EEE but does not prove that EEE is enabled.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Troubleshooting after enabling EEE
The connection does not return
Wait briefly for the adapter to finish applying the property, then check whether the Ethernet status returns. If it remains disconnected, open the adapter properties again and restore the previous EEE value. If the adapter was disabled during the change, right-click it in Device Manager and choose Enable device. Reconnect the cable and test again before making additional changes.
The link reconnects but drops intermittently
Restore the original EEE value and observe whether the dropouts stop. This comparison is more useful than assuming every disconnect is caused by EEE. Microsoft documents possible brief connectivity loss during some gigabit adapter transitions between low-power and fully-on states, but that does not establish a universal failure for all EEE implementations.
Applications feel less responsive
EEE transitions can add a small amount of latency. If an interactive workload is more sensitive to delay than to idle power use, disable EEE on that adapter and compare the behavior. Do not claim a fixed millisecond penalty; the cited manufacturer material does not establish one for every adapter or network.
The setting disappears after a driver change
Recheck the adapter model and the newly installed driver’s Advanced properties. A driver update can expose different options, and an operating-system-specific package may not present the same controls as an earlier package. Follow the computer or adapter manufacturer’s supported-driver guidance rather than forcing an unrelated driver.
Best Value
- [Flat Design, Zero Cable Clutter] - Lies perfectly flat against walls, under rugs, along baseboards, and through tight spaces without kinks, tangles, or messy coils. Customers praise it for effortless installation and clean cable management that blends into any room.
- [REINFORCED BRAIDED CONSTRUCTION FOR LONG‑LASTING PERFORMANCE] - Premium cotton braided jacket paired with reinforced RJ45 connectors delivers outstanding durability, rigorously tested for over 15,000 bend cycles. Many customers describe this ethernet cable as rock‑solid and well‑crafted, ideal for long‑term daily use with no worries about premature wear‑and‑tear or connection failure
- [10GBPS SPEED & 600MHZ BANDWIDTH — GAMING, STREAMING & FIBER READY] - Delivers 10Gbps data transfer rate with 600MHz bandwidth for PS5, Xbox, 4K streaming, and fiber internet. Customers report stable performance and fast speeds. Backward compatible with Cat 6 and Cat 5e devices
- [STP SHIELDING & GOLD-PLATED RJ45 — MINIMIZES EMI/RFI INTERFERENCE] - 100% bare copper STP shielding helps protect signal integrity when routed near power cords. Gold-plated RJ45 connectors resist corrosion. Compatible with 2.5GB network card
- [Works with Everything — Router, Modem, PS5, Xbox, PC, Smart TV, Printer More ] - Full backward compatibility with Cat7, Cat6, Cat6a, and Cat5e devices means this one cable works with all your home or office equipment today, and future upgrades tomorrow. Works with 10/100/1000/10G/40G BASE-T speeds. Includes 36-month warranty with free replacement support
Only one computer has the problem
Compare the affected computer’s adapter model, driver, negotiated speed, and EEE value with a known-working wired system on the same network. If the switch port and cable are shared, a difference in the local adapter or driver is more likely than a network-wide EEE setting. Keep the comparison limited to documented properties; do not alter link speed simply to match another machine.
The setting is enabled but there is no obvious energy difference
That result is possible. Both link partners must support and enable EEE, and the feature acts during idle periods between traffic bursts. A busy link may have few opportunities to enter Low-Power Idle, while a non-EEE switch port prevents end-to-end operation. Windows does not provide a universal meter that converts the setting into a guaranteed wattage value.
When disabling EEE is the sensible choice
Leave EEE disabled when the adapter does not expose a supported option, when the connected equipment cannot use EEE, or when enabling it causes repeatable instability or responsiveness problems that disappear after rollback. Disabling it does not damage the Ethernet adapter; it simply keeps the adapter from using that optional low-power behavior.
Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteWindows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallFor a stable, mostly idle wired link with EEE support at both ends, enabling the feature is reasonable if a small transition delay is acceptable. For a latency-sensitive or troubleshooting-critical connection, stability and predictable response can outweigh an unquantified potential power reduction. Make the decision from observed behavior and the documented capabilities of the complete link, not from the presence of a checkbox alone.
How to revert the setting
- Open Device Manager and expand Network adapters.
- Open the wired adapter’s Properties, then select Advanced.
- Select Energy Efficient Ethernet or the driver’s equivalent EEE property.
- Change the value to Disabled, select OK, and wait for the adapter to reconnect.
- Test the same activity that exposed the problem and record the result alongside the adapter and driver details.
If the property is no longer present, do not substitute a generic PowerShell power-management command. Check the current driver documentation and restore the setting through the controls that driver actually provides.
Source-specific technical notes
Intel’s Ethernet Adapters and Devices User Guide, version 27.3, describes EEE as a capable device entering Low-Power Idle between bursts of network traffic and states that both ends of the link must automatically negotiate speed. Intel’s Advanced Settings for Intel Ethernet Adapters documentation, reviewed February 6, 2025, notes that advanced settings can be unavailable for a particular device or Windows version. Those statements explain both the normal Device Manager workflow and why two otherwise similar Windows 11 computers can show different property lists.
Microsoft’s documentation for Enable-NetAdapterPowerManagement and Set-NetAdapterPowerManagement lists supported Windows power controls without an EEE parameter. Microsoft’s guidance on power management for gigabit Ethernet adapters, updated December 14, 2021, describes possible brief connectivity loss during transitions between low-power and fully-on states. Intel’s guidance for adapters limited to 100 Mbps recommends Auto Negotiation for gigabit adapter links; that is consistent with the automatic-negotiation requirement for EEE.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Practical decision checklist
- Is the selected entry the physical wired Ethernet adapter?
- Does its Advanced tab expose an EEE-labeled property?
- Does the adapter and driver documentation identify EEE as supported for this Windows version?
- Does the connected switch, router, dock, or other link partner support and enable EEE?
- Is link speed set to Auto Negotiation rather than a forced value?
- After enabling EEE, does the connection remain stable for the workload that matters to you?
- If a problem appears, can you reproduce the comparison by restoring the prior value?
If the answer to the first two questions is no, there is no Windows setting to enable on that interface. If the answers are yes but the far-end device does not support EEE, the local option may remain harmlessly enabled while providing no end-to-end power saving. If all sides support EEE and the connection stays reliable, the adapter can use Low-Power Idle during suitable idle periods.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
