X540-T1 Performance in NDIS6 LWF

[YongminKwon]

Hello, I am YongminKwon who previously asked questions related to the NDIS6 LWF
https://community.intel.com/t5/Ethernet-Products/X550-Performance-in-NDIS6-LWF/m-p/1224031

As a result of finding out about a Yottamark® sticker, it seems that the previous LAN card was also manufactured elsewhere.
So this time I bought an appropriate LAN card and tested it, but the same problem appeared.
Please refer to the previous question and answer it. I have attached a valid BradyID code and SSU file.
Thank you for all your assistance.

[AlfredoS_Intel]

Hi Yongminkwon,

Thank you for providing that information.

We will continue checking this and the information that provided is invaluable to us.

Please allow us some time to check on this. We hope for your understanding regarding this

We will get back to you no later than 3 business days from now.

Best Regards,

Alfred S

Intel® Customer Support 

[AlfredoS_Intel]

Hi Yongminkwon,

Thank you for waiting for our update.

After doing an initial investigation on your issue, here is our recommendation:

1. Please try driver version V25.5 (DriverVer = 12/19/2019,4.1.199.0) which can be downloaded from this page, https://downloadcenter.intel.com/download/25016/Intel-Network-Adapter-Driver-for-Windows-10?product=88208.

We look forward to your reply. Should we not get your reply, we will follow up after three business days.

Best Regards,

Alfred S

Intel® Customer Support

[YongminKwon]

Hi AlfredoS,

Unfortunately, even if I downloaded and run the driver version V25.5(DriverVer = 12/19/2019,4.1.199.0), it did not work properly.
Thank you.

Best regards,
Yongmin.

[AlfredoS_Intel]

Hi Yongminkwon,

Thank you for sharing more details regarding our recommendation.

Please allow us some time to check on this. We hope for your understanding regarding this

We will get back to you no later than 3 business days from now.

Best Regards,

Alfred S

Intel® Customer Support

[YongminKwon]

Hi Alfred S,

Thank you for sharing more details.

You said you would contact me in 3 days, but the information was not delivered after a week.

Could you please update the progress about it?

Thank you for your help and support.

Best Regards,

YongminKwon

[AlfredoS_Intel]

Hi YongminKwon,

Thank you for waiting for our update.

We are humbly sorry for not getting back to you on the timeframe that we have suggested. We needed more time to thoroughly check on your concern due to the complexity of your issue.

Here are the findings of our engineers:

To give you information on what LWF stands for “Lightweight Filter Driver”. It’s a driver that sits between our Windows driver and the Windows OS (more specifically the Windows NDIS protocol). An LWF driver can monitor and *modify* the interaction between our driver and the Windows OS.

We checked the SSU logs thoroughly and found a few things.

1. You are using Windows 10 1904

2. You are using driver package 24.2

3. The X550 has the NDIS 6.5 driver installed, should be using the NDIS 6.8 for 1904

You also stated that the LWF is based on NDIS 6.2 which is for Windows 7.

In light with these finding, here are our suggestions:

There are 3 different NDIS versions in this scenario,

1. Update the drivers to the current version using the NDIS6.8 versions

2. Rebuild the LWF and base it on NDIS6.8

3. And make sure that the X550 NVM is up to date

So you would not have be complicated by so many variables

Also, for your questions about the capabilities of the X550 please check these links:

Feature support matrix: https://cdrdv2.intel.com/v1/dl/getContent/335253

Specification updates: https://cdrdv2.intel.com/v1/dl/getContent/333717

Datasheet: https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/ethernet-x550-datasheet.pdf?asset=12457

We look forward to your reply. Should we not get your reply, we will follow up after three business days.

Best Regards,

Alfred S

Intel® Customer Support

[AlfredoS_Intel]

Hi Yongminkwon,

We are just following up.

It looks like you need more time to carry out the recommendations that we have provided.

We will follow up again after 3 business days. Should we not hear from you, our system may automatically close the thread.

Best Regards,

Alfred S

Intel Customer Support

[AlfredoS_Intel]

Hi Yongminkwon, 

We need to close this thread since we have not gotten a response from you: maybe because you are busy or preoccupied at the moment. We know that this is important for you to get it resolved and it is also equally important for us to give you the right solution; as much as we would like to assist you, we need to close it to attend to other customers. We hope for your consideration and understanding on this one.

If you need any additional information, please submit a new question as this thread will no longer being monitored.

Thank you for contacting Intel® and have a great week!

Best Regards,

Alfred S

Intel® Customer Support

[AlfredoS_Intel]

Hi Yongminkwon, 

We need to close this thread since we have not gotten a response from you: maybe because you are busy or preoccupied at the moment. We know that this is important for you to get it resolved and it is also equally important for us to give you the right solution; as much as we would like to assist you, we need to close it to attend to other customers. We hope for your consideration and understanding on this one.

If you need any additional information, please submit a new question as this thread will no longer being monitored.

Thank you for contacting Intel® and have a great week!

Best Regards,

Alfred S

Intel® Customer Support