Windows Server 2019 LTSC

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Windows Deployment Services cannot be located on the specified server. The server might be down, there might be problems with the network, Windows Deployment Services might not be installed, the installation might

be corrupt or you might not have permission to access the server.












How to fix:

On the WDS Server run the following commands in an Elevated Command Prompt:

wdsutil /uninitialize-server,
wdsutil /initialize-server /reminst:{RemoteInstallFolder}   (example: WDSUTIL /Initialize-Server /RemInst:D:\RemoteInstall)



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Windows Server 2019 Bug

It appears that Microsoft’s recently released Windows Server 2019 has a bug that prevents NPS from working correctly out of the box. Specifically, it looks like the default Windows firewall rules to allow inbound UDP port 1812 (RADIUS authentication) and inbound UDP port 1813 (RADIUS accounting) do not work.


To resolve this issue, open an elevated command window and enter the following command.

sc.exe sidtype IAS unrestricted

Once complete, restart the server and the default Windows Firewall rules for NPS traffic will work correctly.

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I have a web site running in IIS 10. When I access the site over HTTP, everything works fine. When I run the site over HTTPS, I immediately get an HTTP 503 error "Service Unavailable". The SSL certificate used on the site is an domain certificate.

The problem in this case is that everything on port 443 has been reserved and "prevents W3SVC from obtaining the rights to listen on port 80 when it tries to start the site. Furthermore, applications that run in IIS do not need explicit reservations to run, only non-IIS applications have to reserve a URL namespace if they want to use HTTP to listen for requests."

Here are the steps to determine if this is the problem and how to resolve:

  1. Open the Command Prompt
  2. Run: netsh http show urlacl url=https://+:443/
  3. If something is there, then this is your problem. Port 443 is completely reserved and is blocking IIS.
    • If there is a need to reserve port 443 for an application running outside of IIS, it needs to be registered with an application path (i.e. http://+:443/appPath)
    • If there is nothing there, then this might not be the issue. No need to continue.
  4. Run: netsh http delete urlacl https://+:443/
  5. Try running  the application again.



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certutil -setreg ca\csp\CNGHashAlgorithm SHA256

Bewertung: 4 / 5

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Server with Desktop Experience: This is the complete installation and includes a full graphical user interface (GUI).

Languages: German

This ISO evaluation is for the Datacenter and Standard editions.

Download Windows Server LTSC 2019 Evaluation 180 days

Convert Evaluation to Volume

Open PowerShell and type:
Standard Edition:
DISM /online /Set-edition:ServerStandard /ProductKey:N69G4-B89J2-4G8F4-WWYCC-J464C /AcceptEula
DataCenter Edition:
DISM /online /Set-edition:ServerDatacenter /ProductKey:WMDGN-G9PQG-XVVXX-R3X43-63DFG /AcceptEula

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Bei einem Upgrade von Hyper-V Server 2012R2 nach Server 2019 verlieren die virtuellen Switches ihre gültige Konfiguration, sodass keine Netzwerkkommunikation mehr möglich ist.

Folgender Artikel weist auf dieses Problem hin:


In the meantime, it is possible to work around this. To get the virtual machine to boot you need to get Hyper-V to create new firmware entries for the IPv6 boot data. The easiest way to do this is to change the MAC addresses on any network adapters connected to the affected virtual machine. This process is different for virtual machines with dynamic and static MAC addresses.

The following update should resolve the Problem : ​May 21, 2019—KB4497934 (OS Build OS 17763.529)


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