Stream to 3D Streaming Troubleshooting

Use this page if streaming doesn’t play on your target device/player. It’s a symptom-first checklist designed to get you to a working stream quickly.

For the full streaming guide (protocols, examples, Kodi, etc), see Stream to 3D - Streaming.

Quick check (most problems)

1. Start with HTTP streaming for best compatibility.
2. Copy the exact stream URL shown in Stream to 3D (Settings summary).
3. If you connect or disconnect Ethernet, Wi-Fi or a VPN, use the newly displayed URL. The PC's local address can change.
4. Test it locally first (same PC) in VLC.
5. If it works locally but not on the device, the stream is being produced but Windows Firewall, network routing or client isolation may still be blocking other devices.
6. On the client/player, manually select the correct 3D layout (SBS vs TB/OU; Half vs Full) to match Stream to 3D output.
7. If the stream plays but the views do not combine cleanly, return the player to its default or best-fit aspect ratio before changing depth settings.

Local test (same PC)

Before debugging the network, verify that Stream to 3D is producing a playable stream:

1. Start streaming in Stream to 3D.
2. On the same PC, open the stream URL in VLC.
3. If it fails locally, the issue is usually configuration/tools rather than the network.

A successful same-PC test does not prove that another device can connect. Windows can reach its own local address even when the active firewall profile does not permit inbound connections from the LAN.

Useful references:

• Tools & Dependencies Checklist
• Settings → Tools
• Advanced streaming and conversion options

Network / VPN / firewall

• Make sure the client device is on the same LAN/Wi-Fi as the PC running Stream to 3D.
• Temporarily exclude VPN routing on either side while proving the direct local route.
• If Ethernet or Wi-Fi was connected or disconnected, confirm that the stream URL now contains the active connection's address.
• Do not disable Windows Firewall. Check that an inbound rule covers the selected HTTP port on the active Windows network profile.
• Some guest Wi-Fi networks isolate wireless devices from one another or from wired LAN devices. Use the main home network while proving the connection.

Release 6 and later installers normally create the required local-subnet rule for standard HTTP port 80 on every Windows network profile. Earlier installations and custom HTTP ports may need the focused check below.

HTTP works on the PC but not another device

With the HTTP stream waiting for a client, open Windows PowerShell and check the active connection and listener:

Get-NetConnectionProfile

Get-NetTCPConnection -State Listen -LocalPort 80 |
    Format-Table LocalAddress, LocalPort, OwningProcess

The listener address should match the URL displayed by Stream to 3D. If it does and VLC works on the source PC, but another LAN device cannot connect, add a rule from an Administrator PowerShell window that is limited to the default port and local subnet:

New-NetFirewallRule `
  -DisplayName 'Stream to 3D HTTP streaming (LAN)' `
  -Direction Inbound `
  -Action Allow `
  -Protocol TCP `
  -LocalPort 80 `
  -Profile Any `
  -RemoteAddress LocalSubnet

To remove that specifically named rule:

Remove-NetFirewallRule `
  -DisplayName 'Stream to 3D HTTP streaming (LAN)'

If you configure a custom HTTP port under Settings > Streaming, use the same port in a correspondingly restricted rule. A rule for port 80 does not cover a custom port.

Protocol notes (HTTP vs RTSP/RTP/UDP)

• HTTP is the default and most widely supported.
• RTSP requires a server (e.g. MediaMTX) running while you stream. With defaults, it can be as simple as downloading MediaMTX for Windows and running mediamtx.exe.
• For background and trade-offs, see Streaming protocols overview.

Client/player compatibility

• Different players/devices support different protocols and containers. If one player fails, test the same URL in another client.
• For Kodi-specific setup, see Streaming with Kodi media player.
• If the stream plays but looks doubled, displaced, ghosted or unexpectedly flat, manually select the matching 3D mode in the client (SBS vs TB/OU; Half vs Full) and disable additional zoom, crop or stretch.
• For source video with black borders at the top and bottom, try a supported SBS output. For borders at the left and right, including padded 4:3 video, try a supported TB/OU output.
• Check the streaming device's display calibration and the TV or projector's overscan or 1:1 pixel setting. Even small scaling differences can move the eye division seen by automatic 3D detection.

When the frame is divided and scaled correctly, the 3D effect should be pronounced. See Player, streaming-device and display scaling for the full diagnostic sequence.

Subtitles

Subtitles are only supported over HTTP streaming.

Before contacting support

To get the fastest resolution, include:

• Your store (Steam/Gumroad/Itch/etc) and Stream to 3D version.
• The protocol you’re using (HTTP/RTSP/etc) and the exact stream URL.
• Whether the stream plays locally on the same PC.
• Logs from Logs & Diagnostics.