Troubleshooting

General troubleshooting: Try moonlight before.

ALVR works by using the NVENC encoder of newer Nvidia graphic cards. If you want to make sure your network is sufficient and that your GFX will work then try Moonlight (https://play.google.com/store/apps/details?id=com.limelight&hl=en) beforehand. You can test both your network and your gfx's capabilities with Moonlight before trying to troubleshoot ALVR. It uses the same technology.

Got a gray "Server is down" message after start server.

1. Check the requirements

• Geforce GPU supports NVENC
  • Geforce GTX 600 series or newer is required. Some laptop GPU like 940MX is not supported.
• Windows 10 64bits
• SteamVR is installed and the install path is C:\Program Files (x86)\Steam\steamapps\common\SteamVR

2. Try to terminate vrserver.exe, vrcompositor.exe, vrmonitor.exe from Task Manager and retry.

Got "A key component of Steam VR isn't working properly" error

1. Check if the graphic driver is updated - Download from Geforce Experience and not Windows Update

2. Try disabling sound from ALVR

3. Check that your GPU does support NVENC

Experience packet loss. (i.e. Got some visual artifacts or broken video frame.)

1. Try the followings.

• Connect with 5GHz 802.11ac Wi-Fi or connect wired LAN to headset
• Lowering video bitrate
• Enlarge video buffer
• Check the router QoS config
  • https://www.reddit.com/r/theNvidiaShield/comments/2rkzgr/shield_portable_gamestream_tips_that_helped_out_a/

IP Address is not displayed on ALVR.exe

1. It maybe a network issue

• Confirm that the headset and PC are connected in the same LAN
• Check the firewall settings (Permit UDP/9944 port)
• If you can use adb, run adb shell ping -c 5 (IP Address of PC) then check success of ping
• Use a tool like iperf to test your local wireless bandwidth, especially UDP.

Submitting Bug Reports and Getting Help

1. Use the Issue Tracker in this repositry

• Read Open Issues and see if you can find help there.
• Read Closed Issues and see if someone else solved the same problem you are having
• If there is an open thread with the same problem you are having and it is unresolved, subscribe to the thread and report the symptoms you are seeing as well.
• If you do not see your issue/bug in the issue tracker, submit a new issue and include the following:
  • Error messages or problems you are seeing
  • When these errors occur and how frequently
  • Basic system specifications (CPU, GPU, memory, wired or wireless to the host PC, wireless router brand/model if it's a network issue)