windows Network card faster in Linux than in Windows

[nullpointerzz]

Hey guys,

Recently I just bought this 10GB network card in combination with this transceiver for both my home Linux server and my Windows gaming PC (to transfer files at higher speeds). Each network card is able to connect to the internet and get the expected speed gains, however when initiating a file transfer between the 2 the rate is capped at 50MB/s under Windows, in SMB and iperf3. I have installed the Intel driver from here and Windows reports the attached driver information. Booting into Manjaro and using the stock driver it found for me, I get speeds of 805 MB/s in iperf3. What I have tried:

• Booting into safe mode with networking
• Setting static IP address and alternate DNS servers
• Changing Speed & Duplex in the device properties from auto negotiation to 10Gb/s full duplex
• Disabling Large Send Offload V2, also in the device properties
  
  Help is greatly appreciated, thank you!

 

[nullpointerzz]

Bump

[Needfuldoer]

Are jumbo frames/packets enabled in Windows?

[nullpointerzz]

17 hours ago, Needfuldoer said:

Are jumbo frames enabled in Windows?

If you mean Jumbo Packet in the adapter options, then no

 

EDIT: Enabling this setting unfortunately made no difference

Edited February 23, 2022 by nullpointerzz

[nullpointerzz]

23 hours ago, nullpointerzz said:

If you mean Jumbo Packet in the adapter options, then no

 

EDIT: Enabling this setting unfortunately made no difference

Tried enabling this option in combination with Speed & Duplex set to 10Gb/s full duplex, still nothing

[nullpointerzz]

Solution: Disable "Receive Side Scaling" in adapter properties

 

I found that the following settings also increased my local transfer speeds:
Flow Control -> Disabled
Interrupt Moderation -> Disabled

Jumbo Packet -> (highest value listed)

 

Did not research what these options actually do so experiment on your own if anyone is reading this in the future