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Internet is extremely slow after Windows 11 24H2 update

Anonymous
2024-12-05T01:35:55+00:00

I'm really frustrated because my internet speeds were fast prior. I installed the update before and it gave the slow speeds so I restored my PC before the update and everything was fine again. My PC crashed and somehow windows decided to force the update and now I can't seem to restore my PC back. What the hell?!

I've looked online to updating drivers and haven't found a solution as they have led to dead ends.

Windows for home | Windows 11 | Windows update

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  1. Anonymous
    2024-12-19T17:02:50+00:00

    I had this same problem with a fresh Windows 11 24H2 install. VERY slow Internet speeds on a 10Gb network adapter. I found that my Receive Window Auto-Tuning Level was set to disable. Setting this to Normal fixed the issue.

    To use netsh to review or modify the autotuning level

    To review the current settings, open a Command Prompt window and run the following command:

    Windows Command Prompt:

    netsh interface tcp show global

    The output of this command should resemble the following:

    Querying active state...

    TCP Global Parameters

    Receive-Side Scaling State : enabled

    Chimney Offload State : disabled

    Receive Window Auto-Tuning Level : normal

    Add-On Congestion Control Provider : default

    ECN Capability : disabled

    RFC 1323 Timestamps : disabled

    Initial RTO : 3000

    Receive Segment Coalescing State : enabled

    Non Sack Rtt Resiliency : disabled

    Max SYN Retransmissions : 2

    Fast Open : enabled

    Fast Open Fallback : enabled

    Pacing Profile : off

    To modify the setting, run the following command at the command prompt:

    netsh interface tcp set global autotuninglevel=<Value>

    Auto-Tune should be set to NORMAL

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  1. Anonymous
    2024-12-07T13:09:42+00:00

    Hi, I’m Vinay. Thanks for reaching out.

    I’m here to help you today.

    I will let you know few steps to fix this issue :

    1. Re-install Network Drivers

    a. Press win + X to open Device Manager and Open it
    b. Expand Network adapters and select your Wi-Fi or Ethernet adapter then right click on them and click on Uninstall device .
    c. Restart Laptop to re-install drivers automatically

    1. Flush and Renew IP

    a. Open command prompt as an administrator by clicking Win + S - search for Command Prompt - Right click on it and click on Run as administrator .
    b. Run below commands

    ipconfig /release
    ipconfig /flushdns
    ipconfig /renew

    1. Perform Network Reset in Settings - Network and Internet - Status - Scroll down and click On Network Reset then Restart the computer .
    2. Run below command in command prompt to disable auto tuning which might help to fix this issue :

    netsh interface tcp set global autotuninglevel=disabled

    Restart your computer.

    I hope this resolves your issue! If you have any queries, please let me know.

    Regards,
    Vinay
    Time Zone :(UTC + 5:30)

    Hey, Vinay - Thank you for nothing. Your reply is useless. Did you ever actually do this yourself and have a successful outcome????

    My 2.5-gigabit Ethernet adapter still gives me 90-megabit connectivity to the Internet, where it used to give me over 900 megabits before 24H2. And now, the computers on my network are no longer visible to this machine.

    I am kicking myself for allowing my computer to upgrade Windows 11 to 24H2.

    Does Microsoft even test these updates before releasing them???

    Is there a way to roll back?

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  2. Anonymous
    2024-12-13T09:19:05+00:00

    My internet went from 300+mbps to about 10-20mbps after this update. I uninstalled the update and now my internet is back where it was. Update is trash.

    10+ people found this answer helpful.
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  3. Anonymous
    2024-12-11T16:12:02+00:00

    My New computer can stream 4K in youtube without any issue after this update It stuggles even to run 1080 at times it buffers, This is unacceptable, Damned Microsoft this update is freakingly making my computer cheap even on MMO games.

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  4. Anonymous
    2024-12-07T16:42:09+00:00

    Not my ISP when my other computers, without the damned update, are as fast as this one used to be.

    10+ people found this answer helpful.
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