Windows Server

What happens when WDS and DNS is installed on the same server: DNS issues with WDS

When WDS and DNS running on the same server may introduce some problems. This happens when the DNS is installed first.

  • The DNS service binds to all ports needed by WDS- The Default WDS port range is 64,000 to 65,000
  • A specific patch can also cause this problem, watch out!

For how to set various DHCP options, see the following link https://techdirectarchive.com/2020/05/26/wds-and-dhcp-deployment-scenarios-how-to-configure-dhcp-server-option-60-66-and-67-for-windows-deployment-services/

Note: In my case, since I do not have any issue since I am using Windows Server 2019. I have the option to obtain a dynamic port from Winsock as shown below!

But if you are running Windows Server 2008 or 2012 you will run into this issue.

Method 1: To resolve this, you will have to navigate to the WDS Server properties as shown below.

– Click the Network settings tab,
– Change the range from say 64100 to 64200 (Note: You have to ensure other applications are not making use of these ports).

That is all you need to do 🙂

Method 2: You can also set this from the command line using WDSUTIL, see the syntax below.

wdsutil /set-Server /Transport /StartPort:65100 /EndPort:65200

Method 3: If you are running Windows Server 2008 R2 you can also configure WDS to dynamically query WinSock for available ports instead of using a port range. This is done by setting the UdpPortPolicy value in the registry to 0.
– You will find it in the HKLM\System\CurrentControlSet\Services\WDSServer\Parameters key.
– You need to restart WDS after changing the value.

For more similar errors, see the following links below.
Note: These links below may not work for you! Use the method above if both DNS and WDS are sitting on the same server.
https://serverfault.com/questions/811418/wds-on-windows-server-2012-r2-dns-and-dhcp-problems
https://techcommunity.microsoft.com/t5/windows-server-insiders/server-2019-preview-17623-dns-amp-wds-service-issues/m-p/175510
https://community.spiceworks.com/topic/1624006-dhcp-not-working-on-wds

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