SCCM 2012 R2 PXE fails (WDS Crash)
Last week I was asked to look into PXE boot issue that a friend of mine was experiencing, in his own words he explained that “PXE boots were working fine until” … he recently built a new Windows 2008 R2 box (No idea why he didn’t use 2012 R2 …).
It wasn’t a boundary group issue, as this problem was intermittent. And was sometimes fixed reboot of the server.
He passed over a bunch of log files, and the following error stuck out.
Log Name: Application
Event ID: 512
Task Category: WDSServer
An error occurred while trying to initialize provider WdsImgSrv from C:\Windows\system32\WdsImgSrv.dll. Since this provider is not marked as critical, Windows Deployment Services server will continue.
As well as this …
Log Name: Application
Event ID: 258
Task Category: WdsImgSrv
An error occurred while trying to initialize the Windows Deployment Services image server.
And this …
System Log: The Windows Deployment Services Server service terminated unexpectedly
and finally …
An error occurred while trying to initialize provider WdsImgSrv from C:\Windows\system32\WdsImgSrv.dll. Since this provider is not marked as critical, Windows Deployment Services server will continue. Error Information: 0xC1030136
So after a bit of Google’ing I found these 2 links that pointed me to the issue …
There is no fix the Workaround provided is as follows. (I took this straight from the second link provided above)
Configure the Configuration Manager WDS provider to be single-threaded instead of multithreaded. This will limit WDS processing of PXE requests to one at a time and will prevent the second, duplicate PXE request from conflicting with the original request. To configure the Configuration Manager WDS provider for single-threading, create the NumberOfThreadsregistry key with a DWORD value of 1 in the following location:
- Configuration Manager 2007 32bit WDS server:HKEY_LOCAL_MACHINE\Software\Microsoft\SMS\PXE
- Configuration Manager 2007 64bit WDS server: HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\SMS\PXE
- Configuration Manager 2012 DP/WDS server:HKEY_LOCAL_MACHINE\Software\Microsoft\SMS\DP
Doing this does not typically affect server performance for PXE requests except in environments where a large number of PXE requests are performed on a consistent basis. In these environments, we recommend that you use the first workaround.
He tried this and PXE boots are running again, I cant say if this will 100% cure his problems, but it normally failed after about 2-3 days and its been a week now and all is still well. So fingers crossed hey …