Global AI and Data Science

Hi,
I am unable to connect to IBM MQ from C# console application with credentials. Here is the code. Its throwing "2035 Not Authorized" error.

protected MQQueueManager mqQueueManager;
public override void Open() {
Hashtable properties = new Hashtable();
properties.Add(MQC.TRANSPORT_PROPERTY, MQC.TRANSPORT_MQSERIES_MANAGED);
properties.Add(MQC.HOST_NAME_PROPERTY, mq_hostName);
properties.Add(MQC.CHANNEL_PROPERTY, mq_channel);
properties.Add(MQC.PORT_PROPERTY, mq_port);
properties.Add(MQC.USER_ID_PROPERTY, mq_userName);
properties.Add(MQC.PASSWORD_PROPERTY, mq_password);
properties.Add(MQC.USE_MQCSP_AUTHENTICATION_PROPERTY, true);

try
{
mqQueueManager = new MQQueueManager(mq_queueManagerName, properties);
Console.WriteLine("Connected to MQ");
}

catch (MQException e)
{
log.Fatal("MQ Queue Manager creation Error", e);
throw e;
}
}

What I have tried:

If I comment user name and password properties. It's able to connect. Not sure, why it's not working with credentials. Please let me know if anyone has encountered this issue and any pointers to resolve the same.