Fix: Slow Internet After Windows 11 24H2 Update

Many users have reported significantly slower internet speeds after updating to Windows 11 24H2. This issue can be frustrating, especially if your connection was fast before the update.

Understanding the Issue

One common cause of slow internet after the Windows 11 24H2 update is the Receive Window Auto-Tuning Level being set to “disabled”. This setting helps optimize internet performance by adjusting the receive window size dynamically.

Solution 1: Check and Modify Auto-Tuning Level

Follow these steps to check and modify the setting:

Step 1: Check Current Auto-Tuning Level

netsh interface tcp show global

Look for the line: Receive Window Auto-Tuning Level. If it is set to “disabled”, you need to change it.

Step 2: Enable Auto-Tuning

netsh interface tcp set global autotuninglevel=normal

After executing this command, restart your PC and check your internet speed again.

Solution 2: Update Network Drivers

1. Press Win + X and select Device Manager.
2. Expand Network adapters.
3. Right-click your active network adapter and select Update driver.
4. Choose Search automatically for drivers.
5. Restart your PC and check your internet speed.

Solution 3: Reset Network Settings

If the issue persists, try resetting your network settings:

netsh int ip reset

ipconfig /flushdns

Restart your PC after running these commands.

Additional Resources

For more troubleshooting tips and official Microsoft updates, visit the Microsoft Support Page.