I used example code provided from the document: ElogSubscriber.cs
When running to websocket.Connect();, it has error:
[4/8/2025 15:43:07] ERROR WebSocket.doHandshake:1554 Not a WebSocket handshake response.
[4/8/2025 15:43:07] DEBUG WebSocket.doHandshake:1555
HTTP/1.1 404 Not Found
Sec-WebSocket-Protocol: robapi2_subscription
X-Inactivity-Timeout: 300
Set-Cookie: -http-session-=6::http.session::b9cbd0389a17bba335011d7c419d6a3b; path=/; domain=127.0.0.1; httponly
Vary: Accept-Encoding
X-Frame-Options: SAMEORIGIN
X-Content-Type-Options: nosniff
X-Request-Timeout: 259200
Date: Tue, 08 Apr 2025 07:43:07 GMT
Sec-WebSocket-Accept: fxbJmtQIEKUmLRmQdxidHoJsHeo=
Cache-Control: no-cache
Content-Length: 71
X-XSS-Protection: 1; mode=block
Connection: Upgrade
Accept-Ranges: bytes
Upgrade: WebSocket
Subscription Service does not have any subscriptions for Client-ID 18.
[4/8/2025 15:43:07] DEBUG WebSocket.closeHandshake:1334 The closing was clean? False (sent: False received: False)
Any idea on how to fix this error?