Windows 10 wifi slows down until reboot

Anonymous
2019-08-16T12:11:47+00:00

Hello

i have noticed a problem with my Lenovo Legion laptop

After a while the internet connection completely slows down to the point it is pretty unusable, however a simple reboot fixes he issue until of course it slows again over time.

i've tried lots of things to rectify that i have seen online, but nothing has resolved the issue. i have all the latest window updates and network driver updates as far as i can tell. i've disable my AV and tested and that makes no difference.

Can someone help please?

Cheers

Windows for home | Windows 10 | Internet and connectivity

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Anonymous
2021-01-29T20:57:32+00:00

I found a very possible solution.

Go to settings - > network -> status -> change adapter options

select your wifi adapter.  right click and select "properties"

select the first "configure" button

go to the "advanced" tab.  select "preferred band" and select "prefer 5GHz band"

This will force your wireless adapter to stay on the 5GHz band of your router.

If all your devices intend to use the 5GHz band, disable the 2.4GHz band on the router (although not recommended as many other devices such as IoT uses the wider, slower band)

The BUG:

I appears that windows will constantly hunt for the stronger signal even if it is the slower signal.   For example, if you were moving around your house with your laptop, you may have started on the 5GHz band, but it picks up the 2.4GHz as stronger, and goes on there.  Your network speed instantly drops.  (this will even happen if you are stationary).  

HOWEVER, even if you go back to an area with strong 5GHz coverage, windows does not return to the 5GHz speeds.  For whatever reason, the speed stays limited to the slower output.  That's why if you reboot or turn off and on the adapter, it resets it and you get max throughput again.

Microsoft should really fix this bug.

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  1. Anonymous
    2021-04-12T00:34:25+00:00

    I've not had this issue lately- don't think I did anything specific to fix it, however.

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  2. Anonymous
    2021-05-17T07:18:44+00:00

    Hi, KrisBolton,

    I am Aditya a tech-savvy and spend most of my life finding out bugs in Windows 10!

    I have also experienced this annoying problem and spend half of my life solving this however I have a good news that finally I have found out 3 ways to fix this. Do the method no.1 first as it is the easiest and the most effective one also!

    Method 1:

    1. Open Settings > Network & Internet > Mobile Hotspot (On the sidebar) > And turn off hotspot!
    2. Open Settings > System > Projecting to this PC (On the sidebar) > And under "Some Windows And Android devices can project to this PC when you say it's OK" Click on dropdown and select "Always Off".

    Problem solved? Still not!

    Method 2:

    1.Press Win_Key+X or Right click on Start

    2.Click Device Manager > Expand "Network adapters" > Right click on "Microsoft Wi-Fi Direct Virtual Adapter #" > Disable device

      Note: After disabling the driver another Microsoft Wi-Fi Direct driver may pop up! Make sure you disable that also!!!!

    Drawback of this method is that you cannot use hotspot or project your PC screen. To again use these things just enable the driver again!

    This method is bit tricky! (Not recommended, Method 2 is enough)

    Method 3:

    1.Go to Task Manager > Services > Open Services (At the bottom left corner) > Find Windows Mobile Hotspot Service and right click on it > Properties > Under "Startup type" select Disabled and click "Stop"

    Drawback: Same as Method 2!

    I hope that your problem is fixed! This problem is mainly caused by wi-fi virtual adapter which allows you to use wi-fi and hotspot together using one network card but the speed gets sacrificed!

    However, if you are happy with this reply then give a like 👍.

    Thank you!!!!

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  3. Anonymous
    2021-05-17T15:05:14+00:00

    Thanks. I'm not tech savy, but will give this a go.  Hoping for the best!

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  4. Anonymous
    2021-05-17T15:17:09+00:00

    Tried all 3 but made no difference.  :-(

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