How to fix Rainbow Six Siege error code 8-0x00003700

Rainbow Six Siege is an online game, so there are bound to be occasional errors that may prevent you from playing. Below, I will explain how to resolve the Rainbow Six Siege error code 8-0x00003700.

Fix for R6 Siege error 8-0x00003700

This error may occur due to various reasons when attempting to load you into the game. The error 8-0x00003700 occurs due to bugs in recent patches or downtime on Ubisoft's servers. Before you begin, make sure to check the Rainbow Six Siege server status to ensure that the servers are not experiencing any issues.

All the solutions to fix the error code 8-0x00003700 in Rainbow Six Siege

Related: How to fix Rainbow Six Siege error code 3-0x00030086

• Restart your PC
  • Like most errors, you can restart your PC and try again.
• Check for updates
  • Check for Windows Updates and driver updates from your PC manufacturer's website to ensure your network drivers are up-to-date. Also, check if your Rainbow Six Siege is updated.
• Restart your internet
  • Most internet connections are on a dynamic IP, so restarting your internet can fix any issues from your side.
• Add a Firewall exception
  • Open the start menu and search for Allow an app through Windows Firewall. Click Change Settings, find Rainbow Six Siege, and check it off on both boxes.
• Verify game file integrity
  • Open the platform you own the game on, and go into your library. Check the properties of the game, and verify or check the files to make sure nothing is corrupted.

If the servers show no issues, then you can do a few things to try and troubleshoot this error:

I recommend restarting your PC in between each of these steps to make sure they take effect. If nothing helped, I highly recommend reaching out to Ubisoft support, since they may be able to help you with any issues that may be affecting you from their side.

For more on Rainbow Six Siege, be sure to check out Are Rainbow Six Siege servers down? How to Check Status and All Ranks in Rainbow Six Siege (Guide) here on Pro Game Guides.