Common RTSP errors and what they mean

When a stream fails to start, the problem is usually in the URL, stream path, or public network reachability, not in the browser player itself.

This page groups the errors that most often block a stream before RTSP.RUN can open it successfully in the browser.

Before you try again

  • check the full RTSP or RTSPS URL format
  • verify that the camera is reachable from the public internet
  • if you are unsure whether this flow fits, review the requirements and security pages too
Try a stream again Check fit and limits

Error states that most often block stream start

Start with the error you see in the player or on the recovery page.

This error means that the camera does not understand the entered address. Usually, a part of the path that specifies the video channel is missing or incorrect.

Correct address format:

rtsp://user:password@camera_address:554/path_to_stream

Examples by manufacturer:
• Hikvision: rtsp://user:[email protected]:554/Streaming/Channels/101
• Dahua: rtsp://user:[email protected]:554/cam/realmonitor?channel=1&subtype=0
• Axis: rtsp://user:[email protected]:554/axis-media/media.amp

What to do: Check the exact format in your camera’s manual or on the manufacturer’s website – each model uses a different “path”.

The camera responds, but the requested stream path does not exist. The address is almost correct, but the last part (channel/stream) is invalid.

Try these options:

  • Main stream (higher quality): /Streaming/Channels/101
  • Substream (lower bitrate): /Streaming/Channels/102

Examples:
rtsp://user:[email protected]:554/Streaming/Channels/101
rtsp://user:[email protected]:554/Streaming/Channels/102

If you use paths like /live, /h264, or /1 and the camera returns an error, your model simply does not support them. You can find the correct path in the manual or using ONVIF tools.

The application tried to connect, but the camera did not respond in time. It might be turned off, incorrectly connected, or not accessible from the internet.

  • Check the camera’s power and network connection.
  • Verify that you are using the correct address, for example: rtsp://user:[email protected]:554/Streaming/Channels/101.
  • If the camera is on another network, port 554 usually needs to be forwarded on your router.
  • The connection may be blocked by a firewall or your internet provider.

The player does not know how to reach the camera. This is not an issue with the last part of the address, but a network problem.

  • Internal IPs (e.g. 192.168.1.10) do not work from the internet – for external access you need a public IP or a hostname (DDNS).