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.
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.
After a hard restart of the computer, checking for an unavailable RPC server will fail. There are times when Windows Firewall and other third-party software automatically blocks and then disables Remote Assistance. Enable remote assistance on all windows and check the firewall to see if the specific RPC server error is resolved.
If the RPC host doesn’t get a response, which can be described as being unable to write to memory, just not being able to open the port, or unreachable, unsurprisingly, an error is triggered. There are three ways to fix any of these errors related to a Windows 10 computer. The most common of the few will be that the RPC specialist is not even running.
When a potential client initiates a request, the request is sent to the server using its name, IP address, and port response. Typically, mapping an RPC server name to an incorrect IP resolution will result in the client accessing the specified incorrect server and possibly an RPC error.
In the context of AD replication, a specific RPC client on the target domain controller was unable to connect to the RPC server on the source domain controller. Common causes of inconsistencies include: Basic troubleshooting steps to understand the problem.
How do I fix error 1722 the RPC server is unavailable?
Verify that the RPC, RPC Locator, Kerberos, home and corporate status of the KDC are correct. Verify that the Remote Call Procedure (RPC), Remote Call Action Locator (RPC), initial state of the Kerberos Key Distribution Center, and site state are correct.
How do I fix Windows RPC server is unavailable?
How to fix RPC server error
- From the Start menu (Open Windows icon), select Control Panel.
- Select Administrative Tools and Tools and then Services. Find “DCOM
- Server Process Launcher” in your contact list and double-click to open it.
- Now you are usually in the configuration menu with an RPC server.
How do I fix Windows 10 RPC server is unavailable?
Here’s how to fix the “RPC server is unavailable” error in Windows 10.
- Restart the RPC server.
- Start your computer properly so that third-party applications can be excluded.
- Check your connection settings.
- Change your firewall settings.
- Change registry settings.
- Use System Restore to restore your computer.

Ermias is a tech writer with a passion for helping people solve Windows problems. He loves to write and share his knowledge with others in the hope that they can benefit from it. He’s been writing about technology and software since he was in college, and has been an avid Microsoft fan ever since he first used Windows 95.