Strange IB disconnecting

[boscap]

Hi,

Everytime I connect to IB, NinjaTrader will connect succesfully for several minutes, then report "Connection is lost". In a while it will reconnect to IB automatically and everything will be normal from then on. It doesn't really affect me, but I'm just curious why this behavior? I'm using NT 6.5.100.14 and TWS 899.4

Thanks.

[NinjaTrader_RyanO]

Hello boscap,

Thank you for your post.

Can you please use the most current supported version of TWS, which is 898.4. Please download and install from the following link.

http://www.ninjatrader-support2.com/ninjatrader/TWS/tws40_install_898.exe

Please let me know if the issue persists.

[boscap]

I just installed TWS 898.4. Still the same problem.

11/5/2009 20:24 Connection IB-XXXXX: Primary connection=Connected Price feed=Connected
11/5/2009 20:24 Connection IB-XXXXX: Primary connection=ConnectionLost Price feed=ConnectionLost
11/5/2009 20:19 Connection Time to flatten=12:00:00 AM Flatten all=Disabled

[NinjaTrader_VinceB]

Hi,

We realize that lost connections can be frustrating. A connection state between NinjaTrader and your broker/market data vendor is not dictated by NinjaTrader. The NinjaTrader application only reports the connection state as it is reported by the API you are connected through. NinjaTrader behaves like a radio receiver in that it receives signals from the connected server. If the signals are not coming through, the underlying broker/market data vendor API reports this to the NinjaTrader application which in turn reports this back to you. Once a loss of connection is reported, NinjaTrader or the underlying API wil continuously try to re-establish a connection.
Common reasons that contribute to connection stability are:

• ISP issues
• Hardware firewall changing IP addresses frequently
• Dynamic IP addresses changing frequently intraday. Usually this happens once a week buy you may want to check with your ISP. If they do change daily, requesting a static IP address may help.
• With Windows XP SP2, if you have more than 10 open TCPIP socket connections (10 programs making socket connections through the internet) Windows will randomly shut down some connections
• Broker/market data servers may be experiencing temporary downtime