Windows 10 wifi slows down until reboot

Anonymous

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

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Anonymous

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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102 additional answers

Anonymous

2021-07-28T13:15:12+00:00

Just an FYI, I am on Windows 10 Pro Build 19043.1110 on a Lenovo Legion 5 laptop with Lenovo Vantage installed. My Network Boost option is turned off and the issue still occurs. I thought I may have solve it with a driver update direct from Intel, but I woke up this morning of 1-2Mb download speeds. Rebooted and back to 110-150Mb.

So turning off Network Boost doesn't work.
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Anonymous

2021-08-01T01:16:38+00:00

for last two weeks I am having same issue...after remining on for a day or more or less the computer's wifi speed becomes dead slow...no registry app etc worked to fix it...only way is to restart computer...signing out does not work...only Restart works... net work fixes dont work unless restarted which means....its the RESTART only option left...so many people have same issue..but no body has found a fix...where are Microsoft experts??
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Anonymous

2021-08-07T07:38:16+00:00

I have the same problem with win 10 Toshiba pro 850. Internet loses speed. restart temporarily fixes problem

I have tired all the things you recommended above. My WIFI works properly on other devices .

Can you tell me how to fix the problem?
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Anonymous

2021-08-08T06:37:43+00:00

I've had this issue ever since I bought my PC last year. Every time I'm playing or streaming some videos I have to restart the computer because of lag & buffering. It works fine for 20-30 minutes but then internet sucks again and I have to restart it all over again. It seriously got annoying since day one and by the looks of this forum, seems like Microsoft really hasn't done anything to fix this issue.
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