{"id":41898,"date":"2026-07-02T14:30:34","date_gmt":"2026-07-02T14:30:34","guid":{"rendered":"https:\/\/fastestvpn.com\/resources\/?p=41898"},"modified":"2026-07-03T13:43:49","modified_gmt":"2026-07-03T13:43:49","slug":"rpc-server-is-unavailable-error-fix","status":"publish","type":"post","link":"https:\/\/fastestvpn.com\/resources\/rpc-server-is-unavailable-error-fix\/","title":{"rendered":"How to Fix RPC Server is Unavailable Error on Windows","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Constantly seeing the \u201cRPC server is unavailable error\u201d on Windows? This guide, updated June 2026, will help fix the issue.\u00a0\u00a0\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The RPC server is unavailable Windows error is one of the most frustrating issues you can encounter. It appears in everything from network scans, domain logins, certificate enrollments, and backups.<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-41905 size-full\" src=\"https:\/\/fastestvpn.com\/resources\/wp-content\/uploads\/sites\/2\/2026\/07\/Fix-RPC-Server-is-Unavailable-Error-on-Windows-900.webp\" alt=\"Fix RPC Server is Unavailable Error on Windows\" width=\"1920\" height=\"800\" srcset=\"https:\/\/fastestvpn.com\/resources\/wp-content\/uploads\/sites\/2\/2026\/07\/Fix-RPC-Server-is-Unavailable-Error-on-Windows-900.webp 1920w, https:\/\/fastestvpn.com\/resources\/wp-content\/uploads\/sites\/2\/2026\/07\/Fix-RPC-Server-is-Unavailable-Error-on-Windows-900-300x125.webp 300w, https:\/\/fastestvpn.com\/resources\/wp-content\/uploads\/sites\/2\/2026\/07\/Fix-RPC-Server-is-Unavailable-Error-on-Windows-900-1024x427.webp 1024w, https:\/\/fastestvpn.com\/resources\/wp-content\/uploads\/sites\/2\/2026\/07\/Fix-RPC-Server-is-Unavailable-Error-on-Windows-900-768x320.webp 768w, https:\/\/fastestvpn.com\/resources\/wp-content\/uploads\/sites\/2\/2026\/07\/Fix-RPC-Server-is-Unavailable-Error-on-Windows-900-1536x640.webp 1536w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">It can prevent you from connecting to remote computers, from accessing files, or even logging into your system.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This guide helps remove all the technical jargon, giving you quick and practical fixes to solve it.<\/span><\/p>\n<p><span style=\"font-weight: 400;\"> <div class=\"fastest-hd-btn\">\n <a class=\"hd-conter-btn\" href=\"https:\/\/fastestvpn.com\/lifetime-special-deals?a_aid=634829be4d0b2\" title=\"Get FastestVPN\">Get FastestVPN <i class=\"fa fa-hand-o-right\" aria-hidden=\"true\"><\/i><\/a>\n <\/div>\n<\/span><\/p>\n<h2>What is RPC? What Causes the Error to Appear?<\/h2>\n<p><span style=\"font-weight: 400;\">RPC, short for Remote Procedure Call, is a built-in <a href=\"https:\/\/fastestvpn.com\/download\/windows-vpn\" target=\"_blank\" rel=\"noopener\">Windows<\/a> mechanism that allows different processes and computers to communicate with each other.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Think of it in this way: you ask to access a file on another computer or perform a task; RPC handles the request and connects you to the right service.<\/span><\/p>\n<h3>How A Standard RPC Connection Works<\/h3>\n<p><span style=\"font-weight: 400;\">Let\u2019s explain it in these words:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Your computer (the client) dials a &#8220;receptionist&#8221; or \u201cservice\u201d on TCP port 135 of the target machine.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The service (Endpoint Mapper) listens to your request and assigns a temporary &#8220;office&#8221; (a dynamic port).<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">You&#8217;re redirected to that new port to actually do your work.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">The RPC error appears when this communication chain breaks at any point.<\/span><\/p>\n<p><b>But what causes it?\u00a0<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The RPC service has stopped or is disabled.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">A firewall is blocking TCP port 135 or the dynamic RPC ports (1024-65535 on older systems, 49152-65535 on Windows 8\/Server 2012 and newer).\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">There are DNS or name resolution issues.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The target computer is offline or unreachable.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Network settings are misconfigured.<\/span><\/li>\n<\/ul>\n<h2>Run a Quick Diagnostic Checklist Before Fixing RPC Server Error<\/h2>\n<p><span style=\"font-weight: 400;\">You shouldn\u2019t be guessing what the issue is and where it lies. For that, here\u2019s a checklist to narrow down the problem:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ping the target computer by IP address: if it doesn\u2019t respond, then you have a network connectivity issue.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ping the target computer by name, for instance, ping SERVER01. If this fails but the IP ping works, you have a DNS problem.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Check that the target computer is turned on; it might sound obvious, but it is usually where the issue lies.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Verify the RPC service is running on the target machine. To do that, open services.msc and look for &#8220;Remote Procedure Call (RPC)&#8221;; it should show &#8220;Running&#8221;.<\/span><\/li>\n<\/ul>\n<h2>How to Fix RPC Server is Unavailable Error (5 Fixes from Simple to Advanced)<\/h2>\n<p><span style=\"font-weight: 400;\">Let\u2019s get started:<\/span><\/p>\n<h3>Fix 1: Verify and Restart Core RPC Services<\/h3>\n<p><span style=\"font-weight: 400;\">This is one of the most effective fixes on the list, especially if the services have stopped or been disabled. Here\u2019s what to do:<\/span><\/p>\n<p><span style=\"font-weight: 400;\">On the PC displaying the error:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Press \u201cWin + R,\u201d type services.msc, and press \u201cEnter.\u201d<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Locate these three essential services and ensure each is set to \u201cAutomatic\u201d and \u201cRunning\u201d:<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Here\u2019s what the service names are and their required status:\u00a0<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Service Name<\/b><\/td>\n<td><b>Required Status<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Remote Procedure Call (RPC)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Running \/ Automatic<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">DCOM Server Process Launcher<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Running \/ Automatic<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">RPC Endpoint Mapper<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Running \/ Automatic<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">If any of these services are stopped, right-click it and select \u201c<strong>Start<\/strong>.\u201d<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Also, if the startup type is \u201c<strong>Disabled<\/strong>,\u201d change it to \u201c<strong>Automatic<\/strong>.\u201d<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Now you can restart your PC and the changes will automatically be applied.\u00a0<\/span><\/li>\n<\/ul>\n<blockquote><p><b>TIP &#8211;<\/b> <i><span style=\"font-weight: 400;\">The RPC Locator is often not needed for client operations and can be left disabled<\/span><\/i><span style=\"font-weight: 400;\">.<\/span><\/p><\/blockquote>\n<h3>Fix 2: Check the Windows Firewall Rules (Port 135 Block)<\/h3>\n<p><span style=\"font-weight: 400;\">The Windows Firewall frequently blocks the RPC traffic and is a primary suspect for this error. There are two methods that you can use for it:\u00a0<\/span><\/p>\n<h4>Method A: Create an Exception for Remote Administration<\/h4>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Open \u201c<strong>Control Panel<\/strong>\u201d &gt; \u201c<strong>System and Security<\/strong>\u201d &gt; \u201c<strong>Windows Defender Firewall<\/strong>.\u201d<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Click \u201c<strong>Allow an app or feature through Windows Defender Firewall<\/strong>.\u201d<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Scroll down and check the boxes for \u201c<strong>Remote Assistance<\/strong>\u201d and \u201c<strong>Remote Desktop<\/strong>\u201d for both \u201c<strong>Private<\/strong>\u201d and \u201c<strong>Public<\/strong>\u201d networks.<\/span><\/li>\n<\/ul>\n<h4>Method B: Check for Explicit Port Blocks<\/h4>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Open \u201c<strong>Windows Defender Firewall<\/strong>\u201d with \u201c<strong>Advanced Security<\/strong>.\u201d<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Click \u201c<strong>Inbound Rules<\/strong>\u201d and look for any rules that might be blocking TCP port 135.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">If you find one, right-click on it and select \u201c<strong>Disable<\/strong>.\u201d This is temporary or testing.<\/span><\/li>\n<\/ul>\n<blockquote><p><b>NOTE &#8211;<\/b> <i><span style=\"font-weight: 400;\">If you&#8217;re using a third-party firewall, ensure you consult its documentation first. This is to make sure RPC traffic on TCP port 135 is allowed<\/span><\/i><span style=\"font-weight: 400;\">.<\/span><\/p><\/blockquote>\n<h3>Fix 3: Enable &#8220;File and Printer Sharing for Microsoft Networks&#8221;<\/h3>\n<p><span style=\"font-weight: 400;\">This network component is essential for RPC communication, particularly for administrative tasks. Here\u2019s what to do to fix RPC server is unavailable:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Open \u201c<strong>Control Panel<\/strong>\u201d &gt; \u201c<strong>Network and Sharing Center<\/strong>\u201d &gt; \u201c<strong>Change adapter settings<\/strong>.\u201d<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Right-click your active network adapter, which is your Wi-Fi or Ethernet, and select \u201c<strong>Properties<\/strong>.\u201d<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ensure \u201c<strong>File and Printer Sharing<\/strong>\u201d for Microsoft Networks is checked. If it&#8217;s missing, click \u201c<strong>Install<\/strong>\u201d &gt; \u201c<strong>Service<\/strong>\u201d &gt; \u201c<strong>File and Printer Sharing for Microsoft Networks<\/strong>\u201d &gt; \u201c<strong>OK<\/strong>.\u201d<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Click &#8220;<strong>OK<\/strong>&#8221; to save.<\/span><\/li>\n<\/ul>\n<h3>Fix 4: Clean Up DNS and Network Settings<\/h3>\n<p><span style=\"font-weight: 400;\">Next on how to fix RPC server is unavailable is via cleaning up DNS and network settings. This is commonly caused by broken DNS resolution. Here\u2019s what to do:\u00a0<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Open \u201c<strong>Command Prompt<\/strong>\u201d as \u201c<strong>Administrator<\/strong>.\u201d<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Run these commands one by one to reset your network stack :<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">text<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">ipconfig \/flushdns<\/span><\/p>\n<p><span style=\"font-weight: 400;\">ipconfig \/registerdns<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">netsh winsock reset<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Now, restart your computer.<\/span><\/li>\n<\/ol>\n<h3>Fix 5: The Advanced Troubleshooting Toolkit<\/h3>\n<p><span style=\"font-weight: 400;\">Last on the list on how to fix RPC server is unavailable error is via the advanced troubleshooting Toolkit. This fix is if the simpler ones haven&#8217;t worked. These tools will help you pinpoint the exact issue. Here\u2019s how to get started:\u00a0<\/span><\/p>\n<h4>Tool 1: PortQry<\/h4>\n<p><span style=\"font-weight: 400;\">Microsoft&#8217;s PortQry is the go-to tool for RPC diagnostics . From a command prompt on the client, run:<\/span><\/p>\n<p><span style=\"font-weight: 400;\">text<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Portqry.exe -n &lt;ServerIP&gt; -e 135<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Replace &lt;ServerIP&gt; with the target computer&#8217;s IP. Analyze the output :<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">If it shows LISTENING, port 135 is open.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Look for a line like <\/span><span style=\"font-weight: 400;\">UUID: d95afe70-a6d5-4259-822e-2c84da1ddb0d &#8230; [49664]<\/span><span style=\"font-weight: 400;\">&#8211; this is the dynamic port EPM assigned.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">If this fails, you have a firewall or network issue.<\/span><\/li>\n<\/ul>\n<h4>Tool 2: Check Group Policy Restrictions<\/h4>\n<p><span style=\"font-weight: 400;\">In some cases, Group Policy can block RPC access. Run the following in an elevated command prompt to generate a policy report:<\/span><\/p>\n<p><span style=\"font-weight: 400;\">text<\/span><\/p>\n<p><span style=\"font-weight: 400;\">gpresult \/h appliedgpo.html<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Open the generated .html file and look under \u201c<strong>Policies<\/strong>\u201d &gt; \u201c<strong>Windows Settings<\/strong>\u201d &gt; \u201c<strong>Security<\/strong> <strong>Settings<\/strong>\u201d &gt; \u201c<strong>Local Policies<\/strong>\u201d &gt; \u201c<strong>User Rights Assignment for<\/strong>\u201d:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Access this computer from the network; however, ensure the user\/computer account is listed.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Deny access to this computer from the network. Ensure that the user\/computer account is not listed.\u00a0<\/span><\/li>\n<\/ul>\n<h4>Tool 3: Registry Check for DCOM<\/h4>\n<p><span style=\"font-weight: 400;\">DCOM must be enabled for RPC to function. To do that:\u00a0<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Open Regedit and navigate to HKEY_LOCAL_MACHINE\\Software\\Microsoft\\OLE.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Find the EnableDCOM value. It should be Y, but if it\u2019s N, change it to Y and restart.<\/span><\/li>\n<\/ul>\n<h2>Cannot Fix RPC Server is Unavailable Error &#8211; System Restore<\/h2>\n<p><span style=\"font-weight: 400;\">If you happened to try all the fixes on the list, everything has failed, and the error still persists, a System Restore is required. It can help revert your system to a state before the issue begins. Here\u2019s what to do:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Open &#8220;<strong>Control Panel<\/strong>&#8221; &gt; &#8220;<strong>Recovery<\/strong>&#8221; &gt; &#8220;<strong>Open System Restore.<\/strong>&#8221;\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Select a restore point dated before you started experiencing the error.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Follow the prompts to restore your system.<\/span><\/li>\n<\/ul>\n<h2>To Conclude<\/h2>\n<p><span style=\"font-weight: 400;\">You now know how to fix RPC server is unavailable error. However, to ensure that this error doesn\u2019t occur again, here\u2019s what you need to do:\u00a0<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Don&#8217;t disable core RPC services because they are critical for Windows operation.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Keep your firewall configured correctly to ensure TCP 135 and dynamic RPC ports are allowed.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Maintain proper DNS records by regularly checking that computer names resolve correctly.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Keep your system updated always to ensure patches often fix underlying RPC issues.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\"> <div class=\"fastest-hd-cta\">\n <h3>Take Control of Your Privacy Today! \n <span>Unblock websites, access streaming platforms, and bypass ISP monitoring.<\/span>\n <\/h3>\n <a class=\"hd-conter-btn\" href=\"https:\/\/fastestvpn.com\/lifetime-special-deals?a_aid=634829be4d0b2\" title=\"Get FastestVPN\">Get FastestVPN <i class=\"fa fa-hand-o-right\" aria-hidden=\"true\"><\/i><\/a>\n <\/div>\n <\/span><\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>Constantly seeing the \u201cRPC server is unavailable error\u201d on Windows? This guide, updated June 2026, will help fix the issue.\u00a0\u00a0\u00a0 The RPC server is unavailable Windows error is one of the most frustrating issues you can encounter. It appears in everything from network scans, domain logins, certificate enrollments, and backups. It can prevent you from [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":5,"featured_media":41906,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[87],"tags":[],"acf":[],"yoast_head":"\n<title>RPC Server Is Unavailable Error: 8 Proven Fixes for Windows<\/title>\n<meta name=\"description\" content=\"Learn how to fix the \u201cRPC server is unavailable\u201d error on Windows with step-by-step solutions, including service checks, firewall fixes, DNS resets, and advanced troubleshooting.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fastestvpn.com\/resources\/rpc-server-is-unavailable-error-fix\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Fix RPC Server is Unavailable Error on Windows\" \/>\n<meta property=\"og:description\" content=\"Here are multiple methods on how to fix RPC server is unavailable error on Windows. 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