Slow download speeds due to Window Auto-Tuning
We've observed users often having luck with the steps below to fix slow download speeds while using VRChat on Windows.
- Open an elevated command prompt by searching cmd from the Windows Start menu and opening it by right-clicking and choosing Run as Administrator
- Run the following command:
netsh int tcp set global autotuninglevel=disabled - Restart your computer and run the following command:
netsh int tcp set global autotuninglevel=normal - Restart your computer again and launch VRChat to see if your download speeds have improved
Slow download speeds can also be caused by a number of issues that are typically network-related. Here are a few things you can try:
- If you're using any security software on your device or your router, try temporarily disabling it or adding an exception for the VRChat application.
- Ensure your connection is not blocking any required ports by following the article here: Which ports do I need to open for VRChat?
- Try running VRChat on a different device using the same connection. If speeds seem faster, the issue is likely specific to your device or Windows installation.
- If you're on PC, ensure your network adapter drivers are up to date.
- Try disabling any VPN software you may have enabled, or excluding VRChat from the tunnel. VPNs can slow network traffic.
If issues continue you can also check out our article for Troubleshooting Connection Issues with VRChat.