What can you do?

1. Make sure you set up your credentials correctly, including all appropriate settings.
2. Make sure you have first logged in to RTrader to activate the credentials by agreeing to the agreements.
3. Do not attempt to log in between 5:00 PM and 6:00 PM ET any day of the week. And not on Friday 5:00 PM through Sunday 6:00 PM ET. Rithmic does maintenance during these times and you cannot log in then.

If you have done the above three things without success, email platformsupport@ninjatrader.com.