Resolve Windows activation error codes Data collection Change the IP address to point to the new KMS server host if it's incorrect. Verify the host record of the KMS host server by going to the domain name folder and verifying the Host A record. Select the _tcp folder under your domain name folder, and search for the _VLMCS SRV record.Ĭheck if the correct KMS host server name is present in the _VLMCS SRV record. Verify the KMS DNS record in the DNS pointing to an incorrect or old KMS server in the environment by using the following steps: Incorrect or old KMS host server record in DNS If it's False, it means that port 1688 is blocked between the KMS client and the KMS server. Review the TcpTestSucceeded output parameter. Here's an example: Test-NetConnection -ComputerName -Port 1688 Open port 1688 between the KMS client and KMS host server, and use the Test-NetConnection PowerShell cmdlet to check if the port is open between the client and server. Networking issues between the KMS client and the KMS host server
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Sppsvc service on the KMS host has stopped runningĬheck if the sppsvc service is running on the KMS server.
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An update is needed for the KMS host running on Windows Server 2003 and an update is needed for the KMS host running on Windows Server 2008 to be able to activate KMS clients that are Windows 7 or Windows Server 2008 R2. Most commonly, we're seeing this error when the KMS host is running on Windows Server 2003 or Windows Server 2008 and the KMS client is Windows 7 or Windows Server 2008 R2. Support version mismatch between KMS client and KMS host machine
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A time difference between the KMS client and the KMS host machine.A support version mismatch between the KMS client and the KMS host machine.This error can occur for one of the following reasons: In the application event log on the KMS host, you see the following event: Log Name: Key Management Service
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In the application event log on the KMS client, you see the following event: Log Name: Application When trying to activate Windows 7 or Microsoft Windows Server 2008 R2 KMS client machines, you may get this error message:Īt the same time, the following entries may get logged in the KMS Event Log on the KMS client and the KMS host. The Key Management Server (KMS) is unavailable Please see the Application Event Log for additional information. No Key Management Service (KMS) could be contacted. When you try to activate Windows, you may get error 0xC004F074 and one of the following error messages:ĠxC004F074 with description "The Key Management Server (KMS) is unavailable"Įrror: 0xC004F074 The Software Licensing Service reported that the product could not be activated. This article helps fix the error 0xC004F074 that occurs when you activate Windows.Īpplies to: Supported versions of Windows Server and Windows Client Original KB number: 974998