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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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  1. 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
    2021-02-19T21:30:28+00:00

    Experiencing the same exact problem. I've tried all the suggestions and then sum.

    Signed up for 1Gb internet with my ISP. I have a number of different computers with different OSes. Every OS is getting from 600-700Mbps down. Brand new windows 10 is getting 17-18Mbps.

    I have:

    Chrome OS

    MAC (MAC is running OLD hardware and still getting better speeds)

    Linux

    Windows 10

    Here is everything I've tried on Windows 10:

    Registry settings

    Adapter settings

    Scans

    Fresh install of Windows 10 Pro

    Security firewall settings

    check both hard wire and wireless (the outcome is the same)

    New fast hardware (beefed up plenty of resources available) - less than 4 months old

    Malware/Virus scans

    Disable every single app other than my browser

    monitor network

    New router

    Keep in mind no other device is affected other than this one windows 10 system so it's not the ISP. The only thing I haven't tried (which I will) is to swap out the SSD and install linux or another OS on this hardware and test. My guess is that it will be better.

    Please let me know if you find a solution.

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  2. Anonymous
    2020-09-28T23:26:33+00:00

    Sorry, I mixed your problem with a similar one ...

    1 ) Try this, right-click on Windows start menu and go Settings.

    Open Network & Internet

    Select Proxy in the left pane. In the right pane, disable all options.

    2 ) Disable Windows Auto-Tuning Feature

    Open windows start menu and type: cmd

    Right-click on " command prompt " and select Run as admin

    Type this following command: netsh interface tcp show global

    Look for the "Receive Window Auto-Tuning Level feature" , if it If it is displayed as 'normal' please deactivate it as follows:

    netsh int tcp set global autotuninglevel=disabled

    Now check if the speed is ok.

    3 ) Disable Large Send Offload

    Right-click again on Start button and select " Device manager "

    Double-click on your Network Card and click on the Advanced tab

    In the drop-down list, select Large Send Offload V2 (IPv4) and set the value to Disabled

    Do the same for Large Send Offload V2 (IPv6)

    Click OK.

    1. Check your dns settings.

    Press Windows + r keys and type: NCPA.CPL

    Right-click on your network card and select Properties

    Select Internet Protocol Version 4 (TCP/IPv4) and go to Properties.

    Checks if the 'obtain an ip .... and Obtain DNS server ....' box is checked on automatic. This must other on auto.

    You can do a test with the google dns if you check Use the following DNS

    Google's Public DNS addresses 8.8.8.8 and 8.8.4.4

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  3. Anonymous
    2021-05-13T16:39:55+00:00

    Update. Seems crazy, but I totally disconnected all plugged-in USB devices, my HDMI connection, audio out to external speakers, disconnected the Ethernet connection again, turned on my wifi and BAM! 480+Mbps speeds! I reconnected everything, tested again and still had full speed down/uploads!! I rebooted, still have full speeds again....go figure.

    After 35 years of computers, I still scratch my head at times......

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  4. Anonymous
    2021-05-13T15:36:22+00:00

    I have been having the same issues with Win10 after two recent updates. My fiber speeds are 400+Mbps, but WINDOWS is limiting the download and upload speeds to exactly 94Mbps! Even my Samsung S10 can get the full speeds from my router via wifi! But no matter which of these solutions I've tried, both Ethernet and Wifi speeds are being throttled by Win 10 on my Predator laptop. I've checked everything I can think of to raise the speeds of the downloads/uploads, but Windows is not allowing anything faster. Very strange indeed...

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