Interactive Brokers API ERROR 2101_c

[ninjaGeorge]

For years I have been running ButtonTrader, and TWS from Interactive Brokers, on Windows 7 64-bit. This week I decided to try NinjaTrader 64-bit, using Interactive Brokers data.

Each time I start NinjaTrader, ButtonTrader immediately gives me a pop-up announcing API error 2101_C. Initially I thought this was caused by both programs using clientID 0, but I resolved this by setting NinjaTrader to clientID 2. But this changed nothing.

So I reported the error code to Interactive Brokers tech support department. They advised me that the problem appears to be that both ButtonTrader and NinjaTrader are requesting account updates. And that there is an API limitation that it can only provide account updates on one account at a time.

Since I'm using live data, and Button Trader is my primary tool I need to stop NinjaTrader requesting this information or stop using NinjaTrader. Can anybody confirm this analysis? For the time being I would be perfectly happy to run NinjaTrader without account information; In the future I would probably drop ButtonTrader if I can make NinjaTrader do everything I need.

[NinjaTrader_Matthew]

ninjaGeorge,

Are you currently using a live license key, or a free simulation license key?

[ninjaGeorge]

I have just started testing NT, so I am using a free simulation license.

[NinjaTrader_Matthew]

Thanks I'm checking to see if there is anything we can do for you at this time. Please expect an update tomorrow morning.

[ninjaGeorge]

NinjaTrader_Matthew,

Could you please get me a status update on this problem? I need the information to make progress on my use of NinjaTrader.

Thanks,
George

[NinjaTrader_Matthew]

Hello ninjaGeorge,

Thanks for checking in.

Unfortunately there is nothing we can do to prevent TWS from requesting your account information when connecting.

The only solution would be to use another account for market data that you are not using with ButtonTrader

[X-RAY]

I think I just asked the same question in another thread I found before reading this one, sorry