Issue with WebSocket Remote Control on Samsung TV Model UA55DU8300ULXL

Smart TV
1

Hello Samsung Developers,

I’m currently developing a Tizen .NET application that attempts to connect to a Samsung TV (Model: UA55DU8300ULXL, Software Version: T-NKLDUABC-1301.1) using the WebSocket-based remote control interface on port 8002.

The application initiates a secure WebSocket connection to: wss://<TV_IP>:8002/api/v2/channels/samsung.remote.control?name=ZGlnaS1yZW1vdGU=

The connection succeeds, and the TV responds with:

{"event":"ms.channel.timeOut"}

However, it does not proceed with the expected token prompt (ms.channel.connect), nor does it accept further remote control commands. This issue persists across multiple attempts and devices.

My questions are:

  1. Has WebSocket remote control support been restricted in newer models like the DU8300 series?
  2. Are there specific TV settings or permissions that must be enabled to allow WebSocket pairing?
  3. I’m using .NET with System.Net.WebSockets.ClientWebSocket to initiate the connection. I would like to confirm whether this WebSocket client library is still supported for remote control functionality on newer Samsung Tizen TVs like the DU8300 series.

Also, please advise where exactly the WebSocket control code should be integrated—for example, is it still valid to use this method directly in a Tizen .NET app (such as in Program.cs or during OnCreate() of the main application class), or has the architecture for remote control changed?

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Any guidance or official documentation related to this would be greatly appreciated.

Thank you!

Best regards,

2

Hello,
For Smart TV questions, please log in to TV Seller Office: (Seller2.0), go to the 1:1 Q&A section, and ask a question.

3

Thank you for the guidance. I will log in to the TV Seller Office and post my question in the 1:1 Q&A section as suggested.

Best regards!