WlanAPI

[AlvinSkx]

Describe the bug The NetworkInterface class gets the wrong speed of the network adapter on the win 10 ltsc 2015 version

To Reproduce Steps to reproduce the behavior:

1. Download routines on Microsoft's official website https://learn.microsoft.com/zh-cn/dotnet/api/system.net.networkinformation.networkinterface?redirectedfrom=MSDN&view=net-7.0
2. The program framework uses 4.6 because win 10 comes with a 4.6 framework
3. After running the program, the output speed of the network adapter will be found to be inconsistent with that seen in the system's network adapter window.

Expected behavior A clear and concise description of what you expected to happen.

Screenshots

Additional context The same program can normally display the corresponding network speed in win10 lstc 2019 version

[welcome[bot]]

Thank you for opening an issue! One of our team members will get back to you with additional information.

If this is a product issue, please close this issue and contact the product's support instead. For a list of support websites, see Support for Microsoft products and apps.

[gewarren]

@wfurt this looks like a bug report. Should it be transferred to dotnet/runtime?

[wfurt]

well, this is old Framework, not .NET Core @gewarren. It is quite possible that the old versions do not support new speeds and it is probably driver/NIC specific. I doubt this would pass servicing bar.

It may be interesting @AlvinSkx to check if recent versions for .NET (e.g. 6.0 or 7.0) show this correctly. And if not, open issue in dotnet/runtime with more details about the hardware and driver.