How to Fix Rainbow Six Siege Error Code 4-0xFFF0BE25

Rainbow Six Siege players have been running into a frustrating issue lately: Error Code 4-0xFFF0BE25. This bug tends to kick players out of matches randomly—usually in Ranked—and leaves them unable to reconnect. The worst part? It often results in automatic bans, even if your connection is fine.

Here’s a simple guide on how to deal with Error Code 4-0xFFF0BE25 and hopefully get back to playing without interruptions.

What Causes Error Code 4-0xFFF0BE25?

This error is mostly linked to connectivity issues between your system and Ubisoft’s servers. But it’s not always that simple—other factors could be involved too:

• Damaged or missing game files
• Temporary game cache issues
• High ping or packet loss
• Firewall or antivirus interference
• Outdated DNS cache
• Too many background apps eating up bandwidth
• Server-side bugs from Ubisoft

How to Fix Siege error code 4-0xFFF0BE25

Here are several steps that might help solve the issue.

1. Verify Your Game Files

Sometimes a file goes missing or gets corrupted during updates, which can cause crashes or disconnects.

Steam:

• Go to your Library
• Right-click Rainbow Six Siege > Properties
• Click the Installed Files tab
• Choose Verify integrity of game files

Ubisoft Connect:

• Head to the Games tab
• Click Rainbow Six Siege > three-dot menu
• Select Verify Files

This may take a few minutes. Restart your PC after it’s done just to be safe.

2. Flush Your DNS & Reset Network Settings

Old DNS data can block proper connections. Use these steps:

1. Open Command Prompt as Administrator
2. Enter the following one by one:

ipconfig /flushdns  
ipconfig /registerdns  
ipconfig /release  
ipconfig /renew  
netsh int ip reset  
netsh winsock reset

3. Restart your PC.

This helps clear out any bad network settings and gives you a clean slate.

3. Allow Siege Through Your Firewall

Your firewall might be stopping the game from connecting properly.

• Open Control Panel > System and Security > Windows Defender Firewall
• Click Allow an app or feature through Windows Defender Firewall
• Click Change Settings > Allow another app
• Browse to Siege’s install folder
• Add all .exe files and allow them on both Private and Public networks

4. Test Your Internet

Use SpeedTest or PacketLossTest to check your connection.

Look out for:

• Ping above 50ms
• More than 1% packet loss
• High jitter

If your numbers look off, try:

• Switching from Wi-Fi to Ethernet
• Restarting your router
• Calling your ISP if things stay bad

5. Close Background Apps

Some apps quietly eat up bandwidth or memory, which can interfere with your connection.

• Open Task Manager (Ctrl+Shift+Esc)
• Look at the Processes tab
• End anything using lots of network, CPU, or memory that you don’t need

Apps like browsers, cloud storage (Dropbox, OneDrive), and updaters can be sneaky culprits.

6. Restart the Game

This might seem basic, but sometimes just restarting Siege helps clear up short-term bugs.

• Close it using Task Manager
• Relaunch through Steam or Ubisoft Connect

If you keep getting the error after restarting, combine this with flushing your DNS and closing background apps.

7. Check Ubisoft Server Status

Before blaming your setup, make sure the servers aren’t the problem.

Go to: Ubisoft Server Status

If the servers are down or under maintenance, there’s not much you can do except wait it out.

Why This Error Is So Frustrating

What really annoys players is that once you get this error, you can’t rejoin the match—even if your internet is working fine. Ubisoft’s system flags it as an abandon, and you end up with a penalty.

“I’ve been banned four times now even though my internet is fine.”
“My friends were stuck in a 4v5 and I couldn’t reconnect no matter what.”
“Ubisoft says they investigated it, but they just closed the thread.”

Ubisoft has acknowledged the bug but hasn’t provided a permanent fix yet. Many players are still waiting.

Final Thoughts

Error Code 4-0xFFF0BE25 is a persistent and painful issue for Siege players. It’s most often caused by network hiccups—but even players with strong internet have been hit by it.

Until Ubisoft fully addresses it, your best bet is to:

• Keep your game and network setup clean
• Use wired connections when possible
• Avoid heavy background traffic
• Follow the fixes above and monitor performance

If it keeps happening, consider avoiding Ranked play until Ubisoft rolls out a proper patch.

Bookmark our fdaytalk gaming page for more guides, patch news, and troubleshooting tips on Rainbow Six Siege and other popular titles.

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