RPC Server Is Unavailable Error in Windows 10

Introduction: The “RPC Server Is Unavailable” error in Windows 10 can be frustrating and disruptive, especially if it prevents you from accessing network resources or using certain applications. Remote Procedure Call (RPC) is a protocol used by Windows to enable communication between processes and services on a network. When the RPC server becomes unavailable or encounters issues, it can lead to various errors and connectivity problems. In this guide, we’ll explore common causes of the “RPC Server Is Unavailable” error and provide step-by-step solutions to fix it on Windows 10.

Understanding the RPC Server Is Unavailable Error:

The “RPC Server Is Unavailable” error typically occurs when a client application or service attempts to communicate with a remote server using the RPC protocol, but the server is unreachable or encounters issues. This error can manifest in various scenarios, such as accessing shared files or printers over a network, connecting to remote services, or running certain applications that rely on RPC communication.

Common Causes of the RPC Server Is Unavailable Error:

  1. Firewall Restrictions: Firewall settings may block or restrict RPC communication between devices on a network, leading to the “RPC Server Is Unavailable” error.
  2. Network Connectivity Issues: Problems with network connectivity, such as network adapter issues, DNS configuration errors, or network congestion, can prevent proper communication with the RPC server.
  3. RPC Service Not Running: If the RPC service is not running or encounters issues, it can result in the “RPC Server Is Unavailable” error.
  4. Incorrect DNS Configuration: Incorrect DNS settings or misconfigured DNS servers can prevent proper name resolution and communication with the RPC server.

Solutions to Fix the RPC Server Is Unavailable Error:

Solution 1: Check RPC Service Status:

  1. Press Win + R to open the Run dialog box.
  2. Type “services.msc” and press Enter to open the Services console.
  3. Scroll down and locate the “Remote Procedure Call (RPC)” service.
  4. Ensure that the service status is set to “Running.” If not, right-click on the service and select “Start.”

Solution 2: Restart RPC Service:

  1. Follow steps 1 and 2 from Solution 1 to open the Services console.
  2. Right-click on the “Remote Procedure Call (RPC)” service and select “Restart.”

Solution 3: Enable RPC Endpoint Mapper Service:

  1. Open the Services console as described in Solution 1.
  2. Locate the “RPC Endpoint Mapper” service and ensure that it is set to “Automatic” startup type.
  3. If the service is stopped, right-click on it and select “Start.”

Solution 4: Verify Firewall Settings:

  1. Press Win + I to open Settings.
  2. Go to “Update & Security” > “Windows Security” > “Firewall & network protection.”
  3. Click on “Allow an app through firewall” and ensure that “Remote Assistance” and “Remote Desktop” are allowed through the firewall.

Solution 5: Reset TCP/IP Stack:

  1. Open Command Prompt as administrator.
  2. Type the following commands one by one and press Enter after each:
    netsh int ip reset
    netsh winsock reset
  3. Restart your computer after executing the commands.


Encountering the “RPC Server Is Unavailable” error in Windows 10 can disrupt network connectivity and hinder access to remote services and resources. However, by following the solutions outlined in this guide, you can effectively diagnose and resolve the issue. Whether it’s checking RPC service status, restarting the RPC service, enabling the RPC Endpoint Mapper service, verifying firewall settings, or resetting TCP/IP stack, there are several methods to try. By addressing the underlying causes of the error, you can restore proper RPC communication and ensure smooth operation of your Windows 10 system.