Hello Luxonis Support Team, I am experiencing an issue with my OAK-D W (IMX378) camera when using both the Python or the C++ DepthAI libraries on Windows 11. When I start up my computer with the camera plugged in, the libraries fail to connect to the camera. However, if I disconnect and then reconnect the camera, it functions correctly. Here are the details of my setup: * Camera model: OAK-D W (IMX378) * Operating System: Windows 11 * DepthAI Library Version: 2.28.0.0 * Languages: Python and C++ Steps to reproduce the issue: 1. Plug in the OAK-D W (IMX378) camera. 2. Start up Windows 11. 3. Attempt to connect using either the Python or C++ DepthAI library (connection fails). 4. Disconnect and reconnect the camera. 5. Attempt to connect again (connection succeeds). Could you please provide guidance on how to resolve this startup connection issue? Any suggestions or troubleshooting steps would be greatly appreciated. Thank you for your assistance. Best regards, Luzian

@"DanielScherrer"#p29716 No update unfortunately, but you can “virtually unplug” a USB device on Windows 11 by disabling then re-enabling it in software. 1. Find your device’s instance ID Open PowerShell as Administrator and run: ``` Get-PnpDevice -PresentOnly | Where-Object {$_.Class -eq 'USB'} | Format-Table -AutoSize FriendlyName, InstanceId ``` Note the InstanceId of the device you want to power-cycle (e.g. USB\VID_03E7&PID_2485\…). 2. Disable then re-enable ``` $id = 'USB\VID_03E7&PID_2485\YOUR_SERIAL' Disable-PnpDevice -InstanceId $id -Confirm:$false Start-Sleep -Seconds 2 Enable-PnpDevice -InstanceId $id -Confirm:$false ``` This will drop the link (“soft-detach”) and then bring it back. Manual GUI alternative 1. Press Win + X → Device Manager. 2. Expand Universal Serial Bus controllers (or the appropriate category). 3. Right-click your device → Disable device → confirm. 4. Right-click again → Enable device. Thanks, Jaka

OAK-D W (IMX378) Connection Issue on Windows 11 Startup

LuzianBieri

Hello Luxonis Support Team,

I am experiencing an issue with my OAK-D W (IMX378) camera when using both the Python or the C++ DepthAI libraries on Windows 11. When I start up my computer with the camera plugged in, the libraries fail to connect to the camera. However, if I disconnect and then reconnect the camera, it functions correctly.

Here are the details of my setup:

Camera model: OAK-D W (IMX378)
Operating System: Windows 11
DepthAI Library Version: 2.28.0.0
Languages: Python and C++

Steps to reproduce the issue:

Plug in the OAK-D W (IMX378) camera.
Start up Windows 11.
Attempt to connect using either the Python or C++ DepthAI library (connection fails).
Disconnect and reconnect the camera.
Attempt to connect again (connection succeeds).

Could you please provide guidance on how to resolve this startup connection issue? Any suggestions or troubleshooting steps would be greatly appreciated.

Thank you for your assistance.

Best regards,
Luzian

jakaskerl

Hi LuzianBieri
This is a known issue, we are actively working on a fix. Current workaround is to reconnect the camera.

Thanks,
Jaka

LuzianBieri

Hi @jakaskerl

Has this issue been fixed in a later version of the firmware or driver?

Thanks a lot for your reply!

DanielScherrer

Hi @jakaskerl

Is there any progress on this issue? We now have a series of cameras in the field and every time the PC needs to be restarted (e.g. after system software updates) the cameras need to be re-plugged which is quite annoying because the cameras are not easily accessible in our setup. We really would appreciate a solution or workaround without manual intervention for this problem.

Thanks for an update on this issue.

jakaskerl

DanielScherrer No update unfortunately, but you can “virtually unplug” a USB device on Windows 11 by disabling then re-enabling it in software.

Find your device’s instance ID
Open PowerShell as Administrator and run:

Get-PnpDevice -PresentOnly |
  Where-Object {$_.Class -eq 'USB'} |
  Format-Table -AutoSize FriendlyName, InstanceId

Note the InstanceId of the device you want to power-cycle (e.g. USB\VID_03E7&PID_2485\…).

Disable then re-enable

$id = 'USB\VID_03E7&PID_2485\YOUR_SERIAL'
Disable-PnpDevice -InstanceId $id -Confirm:$false
Start-Sleep -Seconds 2
Enable-PnpDevice  -InstanceId $id -Confirm:$false

This will drop the link (“soft-detach”) and then bring it back.

Manual GUI alternative
1. Press Win + X → Device Manager.
2. Expand Universal Serial Bus controllers (or the appropriate category).
3. Right-click your device → Disable device → confirm.
4. Right-click again → Enable device.

Thanks,
Jaka

DanielScherrer

Unfortunately this does not work on two different Windows 11 systems we tried.

The "Disable-PnpDevice" command (run as Administrator) returns:

Disable-PnpDevice : Generic failure
At line:1 char:1
+ Disable-PnpDevice -InstanceId $id -Confirm:$false
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (Win32_PnPEntity...2485\03E72485"):ROOT\cimv2\Win32_PnPEntity) [Disable-PnpDevice], CimException
+ FullyQualifiedErrorId : HRESULT 0x80041001,Disable-PnpDevice

After that (and also after disable using the manual GUI method with Device Manager run as Administrator) it looks as if the device would be disabled but it is not, it can still be used. So it is not virtually unplugged.

We noticed that this is also the case for other (non Luxonis) devices on the systems we tried.

Any ideas why this does not work and how we could make this work?

DanielScherrer

Is there any progress on this issue?

The workaround - if it would work - would not be a real solution for us, as this would have to be done by an administrator.