Connection is refused with Influxdb

Hi!!

Connection impossible to Influxdb when using Logstash Script.

My Logstash plugin Output

influxdb {

            host => "192.168.3.123"
            port => "8086"
            db => "ceticdb"
            password => ".."
            user => ".."
            series => "logstash"
            allow_time_override => false
            data_points => {

                           "@version" => "%{@version}"
                            "@timestamp" => "%{@timestamp}"
                            "type" => "%{type}"
                            "file" => "%{file}"
                            "host" => "%{host}"
                            "offset" => "%{offset}"
                            "Base_Time" => "%{Base_Time}"
                            "Mac_Address" => "%{Mac_Address}"
                            "Metric" => "%{Metric}"
                            "Status" => "%{Status}"
                            "Value_Barometer" => "%{Value_Barometer}"
                            "MetricUnit" => "%{MetricUnit}"
                            "Salles" => "%{Salles}"

                            }

}

And telnet 192.168.3.123 8086 works fine from the Logstash machine?

Facing the same issue.