Hey @Gst_Return ,
Incase, you are trying to connect to the WebSocket using the older V1 version. We request you to connect using the latest WebSocket V2.
For reference, please refer our official documentation Live Market Feed - DhanHQ Ver 2.0 / API Document
For python codes you may refer GitHub - dhan-oss/DhanHQ-py: The official Python client for communicating with the Dhan API.
Also, make sure that you are fetching data for current active contract.