Windows 10 limiting my internet speed?

Anonymous
2020-09-28T22:02:37+00:00

I have a PC running windows 10, all of the latest updates have been installed and drivers are up to date and it is connected to a ethernet cable for internet. I have a gigabit ethernet service. When I run an internet speed test I get somewhere between 14 -40 Megabits/sec download and 15-30 Megabits/sec upload (on a good day). When I connect my laptop to the same ethernet cable my download speed is between 650 and 750 Megabits/sec and my upload is closer to 50 Megabits/sec. I have tried many suggestions online such as turning off automatic updates, and removing the reserve bandwidth for updates. changing the network adaptor settings to force gigabit speed rather than auto assign. I have even tried installing a new gigabit network card to see if it was a motherboard issue and no luck. I cant seem to find anything online to help me resolve this issue. Please help.

Windows for home | Windows 10 | Internet and connectivity

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Anonymous
2021-05-04T10:45:03+00:00

Hello,

I had same issue. It was solved for me via following command in cmd. Previous value was disabled.

netsh int tcp set global autotuninglevel=normal

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  1. Anonymous
    2021-06-12T11:27:07+00:00

    'netsh int tcp set global autotuninglevel=normal'

    This fixed it for me. Thanks!!

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  2. Anonymous
    2021-06-12T09:52:16+00:00

    None of the things that you mentioned helped my Laptop (HP Spectre x360 13t) but surprisingly enough there was an option in Device Manager>"Your Network Card">Advanced>Energy Efficient Network

    Which was Magically limiting both My WIFI and Lan Cable(Through a USB C dongle) to 35Mbps constantly.

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  3. Anonymous
    2021-06-05T20:17:04+00:00

    I had the same exact problem and tried all of the suggestions above and they didn't solve the issue. Then I came upon this support article from Intel (my network adapter is not Intel but the solution works): https://www.intel.com/content/www/us/en/support/articles/000058908/ethernet-products/intel-killer-ethernet-products.html

    I've seen 1Gigabit on my network speed before but after restarting my pc it would show 10Mbit or 100Mbit if I was lucky. The issue was the ethernet cable (cat 5) which might be damaged and limited to 100Mbit now. I had a cat 6 cable and after switching to that now I have 1Gigabit speed :)

    For better troubleshooting try to connect the cable directly from the router to the pc. I had mine coming from a wall jack which also might be part of the problem, so for now, I'm sticking to a direct connection. Hope this helps ;)

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  4. Anonymous
    2021-06-03T15:44:07+00:00

    This fixed the problem for me!!! Thanks!!

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