Windows Server 2025 cannot enable mirrored networking.

[Roberta001]

Windows Version

Microsoft Windows [版本 10.0.26100.1742]

WSL Version

2.3.26.0

Are you using WSL 1 or WSL 2?

• WSL 2
• WSL 1

Kernel Version

5.15.167.4-1

Distro Version

Ubuntu 22.04

Other Software

WSL 版本： 2.3.26.0
内核版本： 5.15.167.4-1
WSLg 版本： 1.0.65
MSRDC 版本： 1.2.5620
Direct3D 版本： 1.611.1-81528511
DXCore 版本： 10.0.26100.1-240331-1435.ge-release
Windows 版本： 10.0.26100.1742

Repro Steps

-----.wslconfig-----
[wsl2]
networkingMode=mirrored

Expected Behavior

Successfully enabled mirrored networking.

Actual Behavior

wsl: 指定的请求不受支持。
错误代码: CreateInstance/CreateVm/ConfigureNetworking/0x803b0015
wsl: 无法配置 networkingMode Mirrored) (网络，回退到 networkingMode None。

Diagnostic Logs

WslLogs-2025-01-22_07-39-38.zip

[github-actions]

View similar issues

Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one and thumbs upping the other issue to help us prioritize it!

Open similar issues:

• Cannot enable Mirrored network on WSL (#11154), similarity score: 0.87
• Mirrored networking mode is not supported (#10823), similarity score: 0.82

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• Wsl2 networking mode mirrored not supported. back to NAT #network (#11873), similarity score: 0.84
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• Networking mode does not work in mirrored mode (#11540), similarity score: 0.81

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Diagnostic information

.wslconfig found
Detected appx version: 2.3.26.0

[zcobol]

From this output:

PS C:\Users\Administrator> wsl
wsl: The specified request is unsupported.
Error code: CreateInstance/CreateVm/ConfigureNetworking/0x803b0015
wsl: Failed to configure network (networkingMode Mirrored), falling back to networkingMode None.

it's not clear (to me) if mirrored mode is not supported on Server 2025 or is just broken!

Also, if no support I'd expect it to fallback to NAT mode instead of None.

NAT and VirtioProxy works okay on Server 2025. Windows version 10.0.26100.2894 used for testing.

[justus-camp-microsoft]

@CatalinFetoiu is this the expected behavior? It seems like it would be (log line):

{
	callContext: 	\HnsRpcV2_Enumerate
	currentContextId: 	7
	currentContextMessage: 	
	currentContextName: 	HnsRpcV2_Enumerate
	failureCount: 	6
	failureId: 	8
	failureType: 	0
	fileName: 	onecore\vm\dv\net\hns\service\core\networkentitymanager.cpp
	function: 	
	hresult: 	0x803B0015
	lineNumber: 	1987
	message: 	Mirrored Networking can only be enabled on Client or WVD OS.
	module: 	hostnetsvc.dll
	originatingContextId: 	7
	originatingContextMessage: 	
	originatingContextName: 	HnsRpcV2_Enumerate
	threadId: 	13452
}