Video Transport Help Files
Video TransportDirect Take
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English
  • Welcome to Video Transport
  • FAQ
  • Useful links
    • Control Panel
    • Get Support
    • Pricing
    • Download Demo Trial
    • Release notes
  • Basics
    • Use cases
    • Features
    • Licensing
    • Installing the software
    • Using Video Transport
    • System requirements
    • Network configuration
  • Tools
    • VT Publisher
    • VT Receiver
    • VT Guest
    • VT Web Guest
    • The Web Preview
    • VT Server
    • Control Panel
    • VT SDK
    • My Account section
  • Usage
    • SFU (Selective Forwarding Unit)
    • Disable NDI auto-location
    • UDP/TCP Tunneling
    • Mix-minus routing
    • Changing the audio bitrate
    • Partner License
    • Remote PTZ camera control
  • Troubleshooting
    • Can't connect to the signaling server
    • Streaming does not start
    • The Web Preview does not work
  • VT API
    • Quick Start
    • Connection to signaling
    • Managers
    • Channels
    • Properties reference
    • Errors reference
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  1. Troubleshooting

Streaming does not start

VT Receiver does not show stream preview or can't start output; in the Control Panel preview is pulsing red.

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Last updated 4 years ago

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There can be a two possible causes for this problem:

  1. You have connected to our signaling serves but have problems with establishing a connection between locations. The first think to check is if the are open. The second step would be to try switching to the WebRTC protocol.

  2. The Receiver can't decode the stream from VT Publisher or VT Publisher can't encode the stream with the selected codec. In case, of old GPU hardware or out-of-date GPU drivers, some machines can have limitations for certain transmission methods (especially for "SRT-HEVC"). Check your and switch to "SRT-AVC" or "WebRTC" transmission modes if H.265 (HEVC) is not supported. If H.265 is support try testing with WebRTC first, update your GPU drivers and test again with "SRT-HEVC".

required ports
hardware configuration