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Hi gents.

I'm pulling my hair out, whole of last week and this week I'm using OSD to deploy PC's for a new contract.

Few hours ago all stopped working, any PC or laptop, intel, hp, lenovo. All fail with this error.

Nothing on my environment changed.

Some research takes me to the March 2019 CU update. It is not installed on my server.

Both these registry keys were set back to default with no difference on the outcome.

RamDiskTFTPBlockSize

RamDiskTFTPWindowSize

I also tried this suggestion: https://andys-tech.blog/2019/03/wds-required-device-isnt-connected-or-cant-be-accessed/

 

The error reads:

Status: 0xc0000001

Info: A required device isn't connected or can't be accessed.

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did you try to restart the wds service and redist your boot images after doing the change ?

 

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Back to square one. It now takes 30minutes just to download the .wim

What logs files and events can I refer to for troubleshooting?

I cleared required PXE deployments.

I updated the distribution points, default boot images and mine.

SMSPXE.txt

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I fixed it for now by changing my network adaptor on VMWare from VMXNET3 to E1000E. It now owrks without issues.

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I remember this error was some system patches released in March or May last year, updated and then caused this error. Later, a fix patch released by Microsoft around October resolved the sccm pxe boot error.
In addition, does the boot integrate the VMXNET3 network card driver? The TFTP accelerated startup mode is modified to try to adjust parameters according to the respective corporate network environment.

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