Many Windows PC players have complained about the Rainbow Six Siege error 4-0xFFF0BE25. The message for this error says, “Connection failure Rainbow Six Siege error code 4-0xFFF0BE25.” Players report getting removed from RSS matches when that issue arises. The same error then occurs when they try to rejoin games. Some players can’t join and play RSS matches because of that connection issue. Here are some confirmed ways to fix the Rainbow Six Siege error 4-0xFFF0BE25 on Windows 11/10 PCs.
Verify the Integrity of Rainbow Six Siege
A few RSS players have said verifying Rainbow Six Siege’s files fixed error 4-0xFFF0BE25 on their PCs. Doing this can also address issues with BattleEye Service for the game. Click Yes if you see a prompt for uninstalling BattleEye after selecting the verification scan option. These Steam support and Epic help pages include instructions for repairing games with those gaming clients.
Steam’s Verify Integrity button
Execute Network Commands
One player said on Steam’s forum that he fixed error 4-0xFFF0BE25 by executing a series of network commands for flushing DNS, resetting Winsock, etc. Doing this might resolve network issues on your PC causing the 4-0xFFF0BE25 connection error. So, try executing network commands in the Command Prompt like this:
- Click the file search button or box on your Windows 11 or 10 taskbar.
- Enter the search phrase cmd to locate the Command Prompt tool.
- Select Run as administrator for the Command Prompt search result shown in the file finder tool.
- Input these five separate network commands by pressing Return after each entered:
netsh winsock reset
netsh int ip reset
ipconfig /release
ipconfig /renew
ipconfig /flushdns
The flush DNS command
Disable Set Teredo State With Group Policy Editor
It has been confirmed that disabling teredo (a network tunnelling method for IPv6) can also resolve the Rainbow Six Siege 4-0xFFF0BE25 error. Players with Windows 11/10 Pro and Enterprise PCs can apply this resolution with the Group Policy Editor. This is how you can disable Teredo with that tool.
- Activate the search box in Windows and input gpedit.msc to find Group Policy Editor.
- Click the gpedit.msc search result to view Group Policy Editor.
- Click Computer Configuration > Administrative Template > All Settings in Group Policy Editor.
- Next, double-click Set Teredo State.
The All Settings policies
- Select the Disabled radio button.
- Click Apply inside the Set Teredo State window.
The Set Teredo State policy
- Select OK to exit the Set Teredo State window.
If you don’t have Group Policy Editor, try disabling Teredo with the Command Prompt. Bring up the Command Prompt by following steps one to three of the first resolution. You can disable Teredo with the Prompt by inputting and executing the netsh interface teredo set state disabled command.
Set Your DNS Server to Google
An inconsistent DNS server could also possibly cause the Rainbow Six Siege 4-0xFFF0BE25 error on your PC. You can address this by setting up a more reliable Google DNS server like this.
- Hold down the Windows logo button and press R to start Run.
- Type ncpa.cpl into your Run accessory and press the Enter button.
- Right-click the network adapter for your PC’s internet to select Properties on the context menu.
- Next, double-click the Internet Protocol Version 4 (TCP/IPv4) option to access a settings window for it.
The Internet Protocol Version 4 option
- Select Use the following DNS server addresses to activate input boxes for that setting.
- Enter 8.8.8.8 into the Preferred DNS box.
- Next, input an 8.8.4.4 value in the secondary Alternative DNS server box.
The Use the following DNS server addresses
- Click OK to set the Google DNS server.
Restart Your Windows PC With a Clean Boot
Finally, try clean booting your PC if none of the other possible solutions for the Rainbow Six Siege 4-0xFFF0BE25 error work for you. This will stop many third-party background programs and services from automatically starting with Windows after restarting your PC. Go through the steps on Microsoft’s clean-boot page to apply this potential resolution.
The Services tab in MSConfig
I hope one of those possible resolutions fixes the Rainbow Six Siege 4-0xFFF0BE25 error on your PC. They are resolutions that have worked for other RSS players, so maybe one will fix the same connection error for you. If not, consider contacting Ubisoft’s help service about the 4-0xFFF0BE25 error by clicking Contact Us on this RSS page.
