Hello,
Please pay special attention to the following when troubleshooting:
- Verify correct DNS settings. Troubleshooting "RPC Server is Unavailable" in Windows
- Verify correct Time and Time Zone settings.
- Verify that "TCP/IP NetBIOS Helper" is running and set to auto start after restart.
- Verify that "Remote Registry" is running and set to auto start after restart. Reboot the computer after changing the required settings.
If the previous solution has been checked, please collect data for more in-depth troubleshooting. Here's a guide: RPC error troubleshooting guidance - Windows Client | Microsoft Learn.
References: Error the RPC server is unavailable - Windows Server | Microsoft Learn
I hope this is helpful. If you encounter any further questions, please contact us.
Best regards
Jacen