Rocket League Error 91 is a common connectivity issue that prevents players from joining matches, party sessions, or connecting properly to Epic Games servers. While it can be frustrating, the problem is usually related to network instability, server interruptions, or account syncing issues. Understanding what Error 91 means is the first step toward fixing it quickly and preventing it from happening again.
TL;DR: Rocket League Error 91 is a server connectivity problem that typically appears when the game cannot establish or maintain a stable connection with Epic Games servers. It is often caused by internet disruptions, corrupted cache files, or temporary server outages. You can usually fix it by restarting the game and router, verifying game files, or checking server status. In more persistent cases, adjusting network settings or clearing cache data may be necessary.
What Is Rocket League Error 91?
Error 91 is a connection-related error that most commonly appears when players attempt to join online matches or connect to Rocket League’s servers. The message may display something along the lines of:
- “Connection to the game session timed out.”
- “Unable to join party.”
- “Error 91.”
This error indicates that communication between your device and Rocket League’s central servers has failed or been interrupted. In most cases, it is not caused by a hardware defect or permanent account issue.
Why Does Error 91 Occur?
There are several underlying reasons why this error appears. Identifying the specific cause can help you apply the right fix more quickly.
1. Server Outages or Maintenance
Sometimes the issue is not on your end. Epic Games periodically performs server maintenance, or servers may experience unexpected outages due to overload or technical faults.
2. Unstable Internet Connection
A weak Wi-Fi signal, packet loss, or fluctuating bandwidth can interrupt communication with the game servers.
3. Router or NAT Configuration Issues
Strict NAT types or improperly configured routers can block necessary ports required for Rocket League’s online services.
4. Corrupted Cache or Game Files
Temporary data stored on your system can sometimes become corrupted, interfering with matchmaking and online connectivity.
5. Firewall or Antivirus Interference
Security software may mistakenly block Rocket League’s network activity.
How to Fix Rocket League Error 91
Below are proven methods to resolve Error 91. It’s recommended to follow these steps in order.
1. Check Rocket League Server Status
Before troubleshooting your own system, verify whether the issue is widespread.
- Check Epic Games server status pages.
- Look at official Rocket League social media updates.
- Use third-party outage trackers.
If servers are down, you will need to wait until service is restored. There is no local fix for a global outage.
2. Restart the Game and Your Device
Closing Rocket League completely and reopening it can reinitialize the server connection. If that does not work:
- Shut down your console or PC fully.
- Wait at least 60 seconds.
- Restart and relaunch the game.
This clears temporary system memory that could be interfering with network communication.
3. Power Cycle Your Router
Network instability is one of the most common causes of Error 91.
- Turn off your modem and router.
- Unplug them from power.
- Wait 3–5 minutes.
- Plug them back in and allow full reconnection.
This refreshes your IP address and clears potential routing conflicts.
4. Use a Wired Connection Instead of Wi-Fi
If you are gaming over Wi-Fi, signal interference can disrupt connectivity. Switching to a wired Ethernet connection offers:
- Lower latency
- Reduced packet loss
- More stable data transmission
For competitive or ranked players, a wired connection is strongly recommended.
5. Check Your NAT Type
A Strict NAT Type can prevent matchmaking and lobby joining.
- Open NAT: Ideal for online gaming
- Moderate NAT: Usually works
- Strict NAT: Causes connection issues
You may need to enable UPnP in your router settings or manually forward required ports for Rocket League.
6. Verify Game Files (PC Users)
If you play on PC through Steam or Epic Games Launcher, corrupted game files may cause connectivity errors.
Steps for verification:
- Open your game library.
- Select Rocket League.
- Find the option to verify or validate files.
- Allow the process to complete.
This ensures all game data is intact and properly installed.
7. Clear Cache (Console Users)
On consoles, cached data can interfere with online features.
General process:
- Power down the console completely.
- Disconnect it from power for several minutes.
- Restart the system.
Some platforms also allow manual clearing of reserved storage space.
8. Disable Firewall or Add Exception
On PC, security software can mistakenly block Rocket League.
- Add Rocket League as an exception in your firewall.
- Temporarily disable antivirus to test.
- Ensure outbound ports are open.
Important: Re-enable security programs immediately after testing.
Advanced Network Troubleshooting
If Error 91 persists despite basic fixes, deeper network adjustments may help.
Change DNS Servers
Switching to public DNS providers such as Google DNS or Cloudflare DNS may improve route efficiency to game servers.
- Google DNS: 8.8.8.8 and 8.8.4.4
- Cloudflare DNS: 1.1.1.1
Check for ISP Throttling
In rare cases, internet service providers may route gaming traffic inefficiently. Contacting your ISP and asking about latency or packet loss issues can provide clarity.
Flush DNS (PC)
On Windows:
- Open Command Prompt as Administrator.
- Type: ipconfig /flushdns
- Press Enter.
This clears stored DNS records and forces fresh domain resolution.
When the Issue Is Account-Related
Occasionally, Error 91 may stem from account syncing problems between Rocket League and Epic Games.
Try:
- Logging out of your Epic Games account.
- Relogging and relaunching the game.
- Re-linking connected platform accounts if necessary.
If the issue persists across multiple devices or networks, submit a support ticket to Epic Games with details of the error.
How to Prevent Error 91 in the Future
While not all server issues are preventable, you can significantly reduce the likelihood of encountering Error 91.
- Keep your game updated at all times.
- Use a wired internet connection.
- Maintain modern router firmware.
- Restart your router periodically.
- Avoid large downloads while gaming.
Regular maintenance of your network infrastructure is especially important for players who compete in ranked or tournament modes.
Is Error 91 a Serious Problem?
In most cases, Error 91 is temporary and non-critical. It does not indicate account suspension, permanent bans, or hardware failure. The issue typically resolves with basic troubleshooting or after server stability returns.
However, repeated occurrences may signal:
- Ongoing ISP instability
- Router hardware aging
- Improper NAT configuration
If you experience this error frequently, upgrading networking equipment or consulting your service provider may be worthwhile.
Final Thoughts
Rocket League Error 91 is an inconvenience, but it is rarely permanent. By systematically checking server status, restarting hardware, confirming NAT settings, and verifying game files, most players can restore online functionality within minutes.
A stable internet connection remains the most critical factor in preventing this error. Competitive online games like Rocket League rely heavily on continuous, low-latency communication with servers. Maintaining a reliable network setup not only prevents Error 91 but also improves overall performance and match stability.
If all troubleshooting steps fail, contacting Epic Games support with detailed information about your platform, NAT type, and network environment will help expedite resolution. In the majority of cases, though, the solutions outlined above will get you back into the arena quickly and without lasting impact.