Forum Discussion

Copper Contributor

Jul 30, 2021

sudden slow internet speed on windows 11

recently I updated my windows 10 to windows 11. after that my download speed is suddenly decreased my actual internet speed is 25mbps when I check on the speed test also its showing 25mbps but while ...

Mikepl7

Copper Contributor

Jun 30, 2022

Thanh_Thao_TA

Hello, I'm also having Internet download speeds issues on Windows 11, but in my case this is related to USB3 ethernet adapters, when I use WiFi it works great every time.

Here is more https://superuser.com/questions/1729035/slower-internet-speeds-with-usb-ethernet-adapter-than-card-from-motherboard this is driving me nuts... I checked everything I have idea.

svhelden

Brass Contributor

Jul 25, 2022

My wife's Galaxy Book started to have the same issue today. It her case it is linked to the power supply.

Connect PS: 200 kbps
Disconnect PS: 90 mbps
Connect PS: 300 kbps
Disconnect PS: 89 mbps

Mikepl7
Copper Contributor
Aug 10, 2022
svhelden in my case it does not matter if I have plugged supply or change device power plan, this happen even if I have all set into performance mode. This issue is 100% related to Windows 11 or USB ethernet cards drivers ( funny that with chipsets from Realtek and ASIX is the same problem ). If I run test with Linux USB bootable speeds are awesome with that USB cards... easy & stable over 40-50 MB/s from Internet, normally it starts around 15 MB/s and drops to 4-5 MB/s.