For more information about this issue, see Windows activation or validation fails with error code 0x8004FE33. But, if your internet connection requires authentication, MAK activation won't work and you have to activate over the telephone. You have to be connected to the internet to use MAK activation. MAK activation issue when internet connection uses an authenticated proxy

For more information about how to configure the KMS host computer, see Configure a KMS host computer to activate volume licensed versions of Office.

For more information about how to configure the KMS client, see ospp.vbs script and Activate volume licensed versions of Office by using KMS.

For more information about using DNS with volume activation, see Configure DNS for activating volume licensed versions of Office by using KMS.For example, if the network environment doesn't use SRV records, you can manually configure a KMS client to use a specific KMS host computer. You can manually configure KMS host computers and clients, depending on the network configuration and your security requirements. By default, KMS clients query the DNS server for KMS service information. The KMS service uses service (SRV) resource records (RRs) in DNS to store and communicate the locations of KMS host computers.īy default, KMS host computers automatically publish the information that KMS clients use to find and connect to them by using DNS dynamic update protocol. The KMS client automatically searches for the KMS host computer by using DNS and then attempts activation. Generally, you don't have to configure Office Key Management Service (KMS) clients if the KMS host computer used to activate Office was correctly set up and configured. Tips for configuring KMS clients and host computers For more information, see Check the license and activation status for Microsoft 365 Apps. Instead, you can use a PowerShell script named vnextdiag.ps1. The ospp.vbs script doesn't work for Microsoft 365 Apps or subscription versions of Project and Visio.

Office 2019 pro plus mak key