I look that the Sec-WebSocket-Key inconsistent with the server response

[simonwanghub]

--- request header ---
GET /api/v2/channels/samsung.remote.control HTTP/1.1
Upgrade: websocket
Host: 192.168.35.116:8001
Origin: http://192.168.35.116:8001
Sec-WebSocket-Key: Xhi+Wn7pn3FbOmssyQkG6Q==
Sec-WebSocket-Version: 13
Connection: upgrade

---

--- response header ---
HTTP/1.1 101 Switching Protocols
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Accept: 3rADUUV+VGKaW0MqBwwSpMa4Mm0=

<websocket._app.WebSocketApp object at 0x102613ef0>
{"event":"ms.channel.timeOut"}
send: b'\x88\x82\x93S\x05\xe5\x90\xbb'
<websocket._app.WebSocketApp object at 0x102613ef0>

closed

How can i get Sec-WebSocket-Key and make sure the Settings are correct?