🔧 Valorant Error Fix · 6 Proven Fixes

How to Fix Valorant Error 51

By GameAddaUpdated October 21, 20266 min read

You gather your squad, hit Play, and instead of a lobby you get a cold little message: There seems to be an issue with the Party system. Go ahead and restart the Riot Client. Error Code: 51. No party, no invites, no stacking with your friends — just an error code standing between you and the match.

In plain English, error 51 means the Riot Client failed to create your party. Think of the party system as the lobby you and your friends gather in before queueing: if the client can't reach that lobby service, there is nowhere to queue from. Riot's official fix is a client restart — and for most players that really is the end of it. The 6 fixes below are ordered from quickest to most thorough: work through them in order, and most players are back in a party by Fix 2.

What causes Valorant error 51?

The error appears whenever the client can't complete the party-creation handshake with Riot's services. The usual suspects:

A stuck or half-crashed Riot Client session — the client is still running in the background in a broken state, so the party service never responds properly.
Riot server-side party service problems — outages or maintenance on Riot's end make party creation impossible for everyone.
A stalled VGC service (Riot Vanguard) — the Vanguard service that brokers the game's connection to Riot is stuck, set to Manual, or disabled.
Corrupted Riot Vanguard files — a failed patch leaves the anti-cheat components in a state that silently breaks party creation.
VPN or firewall interference — VPNs reroute and delay the traffic the party service relies on, and firewalls can block the ports outright.
Stale DNS or network glitches — bad cached network data makes the client talk to the wrong place when it tries to create the party.

Good news first: error 51 is not a ban, and your account is completely safe — your rank, skins, and friends list are untouched. This is purely a communication failure between your client and the party service. And the official fix (restarting the Riot Client) takes under a minute.

1Fully close and restart the Riot Client

This is Riot's own documented fix, and it genuinely works for most players — but there's a catch: closing the Valorant window is not enough. The Riot Client keeps running in the background after the game closes, and that background process is what's broken.

Right-click the Riot Client icon in the Windows system tray (bottom-right corner, near the clock) and choose Exit.
To be thorough, press Ctrl + Shift + Esc to open Task Manager and end any remaining RiotClient or VALORANT processes.
Launch Valorant again from your desktop shortcut or the Riot Client.

This clears the broken party-service state inside the client. For most players, this is where the story ends: the party button works, the lobby appears, and the error never comes back.

2Restart your PC and your router

If a client restart didn't do it, go one level deeper. Shut your computer down completely — a real restart, not sleep — and power-cycle your router (unplug it for 30 seconds, then plug it back in).

A full reboot clears stuck client sessions, half-alive network connections, and temporary glitches in the party handshake that a simple client restart can't reach. Give the router a minute to come back online, then launch Valorant and try creating the party again.

3Check Riot's server status before touching anything else

Before you start reinstalling things, rule out the one cause you can't fix: Riot's own party service being down. Error 51 is a common symptom of server-side maintenance or incidents.

Open Riot's official service status page for Valorant in your region.
Look for any active incidents or maintenance banners on the support site — Riot lists those right at the top.
Ask a friend in another house: if everyone gets error 51, it's Riot-side, not you.

If there's an active incident, no client-side fix will help — you just wait for Riot to resolve it and try again later. While you wait, the free browser games on GameAdda need no client, no party system, and no updates. 🎮

One thing to avoid: don't download any error 51 fixer, party system repair tool, or so-called Riot Client booster from random websites. They're scams or malware — there is no magic program beyond the official client and Vanguard installer, and nothing legitimate can speed up Riot's own services. Every real fix for error 51 is free and listed in this guide.

4Restart the VGC service used by Riot Vanguard

Riot Vanguard runs as a Windows service called vgc, and party creation depends on it being healthy. If it's stuck, stopped, or set to Manual, the party handshake fails with error 51.

Press Windows + R, type services.msc, and press Enter.
Find the vgc service in the list.
Right-click it and choose Restart.
Double-click vgc, set Startup type to Automatic, and click Apply.
Launch Valorant and try creating a party.

Setting the startup type to Automatic matters: after Windows or Vanguard updates, the service can silently drop back to Manual, which is why error 51 keeps reappearing for some players after patches.

5Reinstall Riot Vanguard cleanly

If restarting the VGC service didn't stick — the error returns after a reboot — the Vanguard installation itself is likely corrupted. Reinstall just Vanguard; you don't need to touch the game.

Open Settings → Apps → Installed apps and uninstall Riot Vanguard.
Restart your PC — this step matters, since Vanguard runs at kernel level.
Launch Valorant. The game detects the missing anti-cheat and reinstalls it automatically, then asks you to restart once more.
Restart again and try the party button.

A fresh Vanguard install clears corrupted anti-cheat files and broken service registrations that a simple service restart can't repair. This is the fix for players who repaired everything else and still hit error 51 every single day.

6Turn off your VPN, then check firewall and DNS

VPNs are a classic error 51 trigger: they reroute your traffic through extra hops and different regions, which confuses the party service and makes party creation fail.

Disable your VPN completely before launching Valorant — not just for the game, for the Riot Client too.
Make sure Valorant and Riot Vanguard are allowed through Windows Firewall (Control Panel → Windows Defender Firewall → Allow an app).
Open Command Prompt as administrator and run ipconfig /flushdns to clear stale DNS entries.

If you must game through a VPN, try a server in your own country or city — but know that Riot's party service is much happier without one, and most error 51 cases tied to VPNs vanish the moment it's off.

Quick checklist to keep error 51 away

Fully exit the Riot Client from the system tray after each session — don't let it sit half-crashed in the background.
Keep the vgc service set to Automatic so updates don't quietly disable it.
Keep your VPN off while queuing — it's the number one avoidable cause of this error.
Check Riot's status page first whenever the error appears for everyone you know — it's often server-side.
Restart your PC after every Valorant patch before your first queue — patches are when Vanguard files break.
Never install party system fixer or client booster tools from random sites — they're scams or malware.

Frequently asked questions

What does Valorant error 51 mean in plain English?

It means something went wrong creating a party. The Riot Client failed to talk to the party service — the system that builds your pre-game lobby — so you can't create a party or join your friends. It's a client-to-service communication failure, not a ban and not a hardware problem.

Is Valorant error 51 a ban or account punishment?

No. Error 51 is purely technical: the party service failed to create your lobby. A real ban shows an explicit message about your account being suspended. Your account, rank, and skins are completely unaffected by error 51.

Why does Valorant error 51 keep coming back?

Recurring error 51 almost always means the real cause survived your first fix. The usual repeat offenders are a VPN that's always on, the vgc service set to Manual or Disabled so it breaks again after updates, or corrupted Vanguard files that need a full reinstall rather than a restart. If it happens for all your friends at once, check the server status — it may be a genuine Riot-side outage.

Can Riot server problems cause error 51?

Yes. When Riot's party service is down for maintenance or experiencing an incident, clients report error 51 because the party simply can't be created. Check Riot's official service status page before reinstalling anything — if there's an active incident, the only fix is waiting for Riot to resolve it.

Do I have to reinstall Valorant to fix error 51?

Almost never. Error 51 is a party service problem, not a broken game install. Work through the lighter fixes first: a full Riot Client restart fixes most cases, and restarting or reinstalling Riot Vanguard covers most of the rest. Reinstalling the whole game is a last resort and rarely what actually fixes this error.

What should I do if nothing fixes Valorant error 51?

First confirm there's no active Riot service incident on the official status page. If the servers are healthy and error 51 persists, submit a ticket to Riot Support from the support site with the exact error text, whether it happens when creating or joining parties, what region you play on, and everything you already tried — that detail gets you past the standard replies and to a real diagnosis.

For most players, error 51 disappears at Fix 1 — a full Riot Client restart from the system tray, not just closing the game window. If that doesn't do it, the VGC service and Vanguard reinstall cover nearly everything else. And while you're sorting things out, the free browser games here on GameAdda need no client, no party system, and no anti-cheat — just pick one and play. 🎮