ws upgrade response not 101

[xuanzangfashi]

HttpServer htsv; public SZWebSocketServer() { htsv = new HttpServer("http://" + ConfigManager.Instance.config.frontserver.http.addr); htsv.AddWebSocketService<UserBehavior>("/ws"); htsv.WaitTime = new TimeSpan(0,0,0,int.Parse(ConfigManager.Instance.config.frontserver.http.timeout)); htsv.Start(); }

as client i use ue4 websocket. the connect function always return "ws upgrade response not 101"