To resolve this issue, troubleshoot a single event ID 12288 associated with a specific activation attempt. you may need to keep the kms server up to date. Then you can also try restarting the kms server without a second thought.
Restart the RPC server. The easiest fix for the RPC service unavailable message is to restart the service.
Perform every clean start.
Check your firewall.
Check your network connection settings.
Change the registry settings.
Use System Restore to restore your computer.
Check the correct DNS settings. Fixing the “RPC Server Unavailable” Issue in Windows.
Check if the time and time zone settings are correct.
Check what is often “TCP/IP NetBIOS Helper” and then set it to start automatically after reboot.
Make sure “Remote Registry” is running and set to automatically start after the computer.
Restart your computer.
Watch for error messages.
Determine where these shared drives are located.
Look for what could be different.
Check the startup status and type with the RPC Helper and RPC Locator on the server, which throws our own error: By default, almost all Windows Server 03 DCs and member servers should have the RPC service running, and RPC is set to Automatic, and financial services must be terminated. The location service is stopped and set to start manually.
If you do not involve a network administrator, please notify any administrator you obtain in the process of this information stored in the C:\Windows\debug\dcdiag.txt file. The error can be: “DNS name does not exist” – srv necessary DNS records that can find the AD domain controller for the domain are usually not registered in DNS.
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