Internet slow until i unplug/replug in Windows 10

[Julscoob]

Hi everyone,


I have a really weird problem and didn't manage to find the solution online yet so I'm posting here :


When I boot my PC, my network is slow : 150ish Mbps down / 1ish Mbps up and it feels all laggy specially in online games.


Here's an example of the speed when I boot my PC.




Everytime i feel this lag, I unplug my cat. 7 network cable and plug it back in and I feel so much improvement as you can see :





I don't want to unplug/replug my cable everytime, so I'm searching for a fix to this issue.


I have a 2.5Gbps down / 700Mbps up internet connexion from my ISP and my router is new and up to date.

I have a Realtek 2.5G network card in my PC and all its drivers are up-to-date from the constructor's website.

I forced 2.5Gbps full duplex on both sides but it doesn't seem to be a negociation problem.


Note : I'm a network engineer so you don't need to go easy on me


Additional notes : Yes everything is up to date, I tried to configure my network adapter settings in Windows, disabled green ethernet and every power-saving options, so far nothing seems to make a difference.


Specs :

• Win 10 Pro up to date 07/10/2020
• AMD Ryzen 5 3600
• MSI B450 Gaming Plus Max
• 16G RAM
• 500Gb NVMe ssd where Windows is installed

Thanks in advance for your help


Julscoob

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