


Second, check the Event Viewer for events that are related to licensing or activation. First, check the status of the host software license service. There are two areas to examine on the KMS host. After activating, the KMS clients try to renew their activation every seven days.įrom a troubleshooting perspective, you may have to look at both sides (host and client) to determine what is going on. During the 30-day out-of-the-box grace period, they will try to activate every two hours. Then the clients automatically try to discover and use this service to activate themselves. The KMS clients use DNS SRV records (_vlmcs._tcp) to identify the KMS host. The presence of the GVLK is what makes a system a KMS client. The KMS clients are supplied with a pre-installed key, called the Generic Volume License Key (GVLK) or KMS Client Setup Key. KMS clients can be running any edition of Windows that uses volume activation. The KMS client is the Windows operating system that is deployed in the environment and has to activate.To configure a KMS host, you have to install a KMS key from the Volume License Service Center (VLSC) and then activate the service.

