How to Double Your Wi-Fi Speed with One Device Manager Tweak

Introduction

If your internet feels sluggish despite having a good router and no ISP issues, the culprit might be a simple Windows power-saving setting. By disabling it in Device Manager, many users have seen Wi-Fi speeds jump dramatically—from around 260 Mbps to over 430 Mbps. This guide walks you through the exact steps to make that change yourself, with no technical expertise required.

What You Need

• A Windows PC or laptop (Windows 10 or 11 recommended)
• Administrator access to the computer
• An active Wi-Fi connection (or at least a Wi-Fi adapter installed)
• A speed test tool (e.g., Speedtest.net)
• Patience—the whole process takes under 10 minutes

Step-by-Step Instructions

Step 1: Open Device Manager

Press the Windows Key + X on your keyboard, then select Device Manager from the menu. Alternatively, you can search for “Device Manager” in the Start menu.

Step 2: Locate Your Network Adapter

In Device Manager, scroll down and expand the Network adapters section. You’ll see a list of devices—look for one that mentions “Wi-Fi,” “Wireless,” or “802.11” (e.g., “Intel Dual Band Wireless-AC 8265”).

Step 3: Open Adapter Properties

Right-click on your Wi-Fi adapter and choose Properties from the context menu.

Step 4: Disable Power Saving

Go to the Power Management tab. You’ll see a checkbox that says “Allow the computer to turn off this device to save power.” Uncheck this box. This is the single setting that can bottleneck your Wi-Fi speed.

Step 5: Apply and Confirm

Click OK to save the change. You may need to confirm any User Account Control prompts if they appear.

Step 6: Restart Your PC

Reboot your computer to ensure the new setting takes effect. A restart also clears any temporary network glitches.

Step 7: Run a Speed Test

After restarting, run a speed test using your preferred tool. Compare the results with your previous speeds—you should see a noticeable improvement, often close to double the original bandwidth. For reference, many users report jumps from 260 Mbps to 430 Mbps.

Tips for Best Results

• Check driver updates: If speeds don’t improve, update your Wi-Fi adapter driver via Device Manager (right-click adapter → Update driver).
• Disable other power-saving settings: Go to Control Panel → Power Options → Change plan settings → Change advanced power settings, then under Wireless Adapter Settings, set Power Saving Mode to Maximum Performance.
• Placement matters: Ensure your PC is close to your router and free from physical obstructions for optimal signal strength.
• Re-enable if needed: If you experience battery drain on a laptop, you can reverse this change anytime by re-checking the box.
• Test multiple times: Run speed tests at different times of day to rule out ISP congestion.