Fix: Rainbow Six Siege Connection Failure Error 2-0x0000c015

The Rainbow Six Siege error 2-0x0000c015 occurs when your connection is interrupted by a third-party service or your network configuration to the game data centre. The error message pops up mid of the game during which the game usually freezes for a few seconds. Subsequently, the Connection Failure error message pops up which disconnects the user from the server.

Rainbow Six Siege Error 2-0x0000c015

The said issue has been around for quite a while now and it has been plaguing the gaming experience of various users. In some regions, the issue happened to be due to the government or ISP restrictions which were blocking various ports for unknown reasons. Nonetheless, we will be listing a number of solutions that you can follow to help resolve the issue. But before we get into that, let us have a look at the causes of the issue in more detail.

We went through several user reports and gathered a list of various causes that were being the root of the issue for different users. Here are the reasons that usually cause the error:

Now that we have gone through the causes of the said error message, let us get into the solutions that you can implement to get rid of the issue for good. The below solutions have been reported as working by other users so they are very likely to work for you too.

1. Disable Third-Party Antivirus

As it turns out, some of the third-party antivirus suites are overprotective and usually interrupt with connections that are being established with your system which often causes certain issues such as this one. This happens when your antivirus suite thinks that the connection being established is not safe and therefore often terminates it or meddles with it. To avoid this kind of behaviour, you will have to create exclusions on your antivirus suite for Rainbow Six Siege so that it is not scanned when you are mid-game.

Alternatively, a good and recommended method of completely omitting the indulgence of your antivirus suite would be to uninstall it from your system and then remove any remaining files. Doing so will completely remove the trace of the antivirus software on your system.

Here’s how to uninstall your antivirus software:

After you have done so, try joining a game again and see if the issue persists. If so, move on to the next solution.

2. Flush your DNS

As we have mentioned, your network configuration is very likely to be the cause of the issue. Your DNS settings are usually the culprit in this scenario. Therefore, to resolve the issue, you will have to flush your DNS and then see the issue persists. However, before doing this, we recommend verifying the integrity of game files so that you are sure that the issue is not because of missing or corrupted game files.

Once you have done that, you can move on to flushing your DNS. Doing this is very easy and can be done pretty quickly. You might have to do flush your DNS a few times before the issue is resolved as reported by a user who was facing the issue. To flush your DNS, please follow the below instructions:

Head to your game and see if the issue is still there.

3. Change your DNS Server

Another thing you can do is change your network settings to use a different DNS server. Certain ISPs block various connections due to which the users often face connectivity issues. The workaround here would be to configure your network to use a public, robust and private (in terms of privacy) DNS server other than the default one which is controlled by your Internet Service Provider.

For this purpose, there are various public DNS servers that you can use. However, we would recommend using the DNS server provided by Cloudflare due to its robust and privacy features. The IP is 1.1.1.1. To change your DNS server, please refer to the How to Change DNS in Windows 10 article published on our site that explains the said thing very thoroughly.

4. Forward Ports used by Rainbow Six Siege

If the above solutions have failed to resolve the issue for you, it can be due to the fact that the game is not able to establish a connection with the game server, hence the connectivity failure. To resolve this, you will have to manually forward the ports provided by Ubisoft on this page.

Port forwarding can be different depending on the router/modem you are using as well as the manufacturer. However, for the sake of reference, you can check how to forward ports for online gaming. You will just have to replace the ports with the ports provided by Ubisoft in the above-mentioned link.

Fixed: Rainbow Six Siege Error Code 2-0x0000c015 (2021 Update) [Partition Magic]

Have you ever encountered error code 2-0x0000c015 when playing the online tactical shooter video game Rainbow Six Siege? How to fix the connection failed error? This post from MiniTool will show you some effective solutions.

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The Rainbow Six Siege error 2-0x0000c015 is a connection failure error which usually appears when your connection is interrupted by a third-party service during the game play. When that happens, the game may freeze for a few seconds. Then it pops up the connection failure error message showing Rainbow Six Siege error 2-0x0000c015.

Well how to fix the game connection issue? After analyzing several posts on how to fix the Rainbow Six Siege error code 2-0x0000c015 connection failure error, here I have summarized some effective solutions. You can try them one by one.

Solution 1. Disable Third-Party Antivirus Programs

Some third-party antivirus programs may interrupt with connections that are established with your system, which usually leads to some problems like Rainbow Six Siege error code 2-0x0000c015.

If this is the case, you can temporarily disable third-party antivirus programs on your computer and then check if the error message Rainbow Six Siege error code 2-0x0000c015 disappears. Alternatively, you can also completely uninstall the program. If you need to uninstall third-party antivirus software, you can follow the steps below.

Step 1. Press Windows + R keys on the keyboard to bring up the Run dialog box. Then type appwiz. cpl in the Run dialog box and hit Enter.

Step 2. Then you will see all the installed programs on your computer. Scroll down to find the antivirus software you want to delete and right-click on it to choose Uninstall.

Step 3. Follow the on-screen prompts to finish the uninstallation.

After you have uninstalling the antivirus software, check to see if the Rainbow Six Siege error code 2-0x0000c015 connection failure error gets fixed.

Uninstalling unnecessary programs or apps is one of the most common and important tasks that all computer users need to do. Here is a guide to remove them.

Solution 2.Change DNS Server

When the Rainbow Six Siege error code 2-0x0000c015 occurs, you can try using a different DNS server. Certain ISPs block various connections due to which the users often face connectivity issues.

By using a robust DNS server for your network instead of the default one controlled by your Internet Service Provider, you should be able to fix the Rainbow Six Siege error code 2-0x0000c015 connection issue.

there are various public DNS servers that you can use. And the DNS server provided by Cloudflare is a recommended one for its privacy and robust features. If you want to have a try, you can change your DNS server to this one, the Cloudflare’s IP address is 1.1.1.1.

You can follow the steps in this post to change DNS server on Windows: How To Change DNS On Windows 10: 3 Ways Available [MiniTool News]

Solution 3. Flush Your DNS Settings

The improper network configuration is a major reason for Rainbow Six Siege error code 2-0x0000c015 connection failure error. and it is usually associated with your DNS settings. In this case, you’d better flush your DNS and see if this can fix the connection issue.

If you don’t know to flush your DNS settings, follow the steps below:

Step 1. Press the Windows log key and R key on the keyboard to bring up the Run dialogue box.

Step 2. Type cmd and then press Ctrl + Shift + Enter keys together to open up the Command Prompt with administrator privileges.

Step 3. In the elevated Command Prompt window, type ipconfig /flushdns and hit Enter to run the command.

Step 4. After the command is executed successfully, you can close the Command Prompt window.

Head to your game and see if the issue is still there.

This article aims to introduce how to flush DNS resolver cache in Windows 10/8.1/7. Besides, some other questions about DNS will be answered here.

Conclusion

After reading this post, now you should know how to fix Rainbow Six Siege 2-0x0000c015 error on your PC. Which method works for you? Do you have better solutions to fix Rainbow Six Siege connection failed error? We are glad to have you share it with us.