Connecting data feed from TradeStation

[AUSSIE]

I am trying to connect data feed from Tradestation to operate charting in Ninja Trader.

This does not seem to be working. I get a message in Tradestation "Unable to connect to Ninja Trader.Connection refused by Ninja Trader"

Any advice on this?

[NinjaTrader_Ray]

Is NinjaTrader connected to the "External Data Feed" via the Control Center File-->Connect menu?