NT7 crashes when connection to IB is lost

[jakjak74]

Hi NT support team

I am testing a strategy on IB Paper trading. The strategy is supposed to run 24 hours as it deals with FX.

I have indicated in Initialize() all the connection parameters such as

DisconnectDelaySeconds
MaxRestartMinutes
MaxRestartAttempts
ConnectionLossHandling (KeepRunning)
RestartDelaySeconds

My OnConnectionStatus method doesn't do anything particular apart resetting some parameters.

What I noticed is that when IB updates its servers, NT simply crashes. Last night I have observed 3 crashes
1 at 00:30 CET time
1 at 06:04 CET time
1 again at 07:32 CET time

Given the IB resetting schedule for Europe between 05:45 -06:45 CET time, the 2nd might be due to this but the 2 others I don't know the reason behind.
In any case the bad thing is, NT7 simply crashes, giving me the bad surprise of a small window telling me NT7 stopped functionning and I have to click ok to close it down or debug it.

My understanding is we should not have these crashes. And going through the forum I see a lot of people having their strategies simply disabled but they don't see these NT crashes.
So my questions are
1- what could be the source of these disconnections ? I suppose this has to be answered by IB
2- How to avoid NT crashing when these connections are seen ?

I can send you the trace file where you can see the times mentionned above where I had to restart NT7 manually. I don't see myself any reason for these NT7 crashes in the trace file. But will appreciate an expert eye to see how to fix this issue?

Thanks for the help

[NinjaTrader_PaulH]

Hello jakjak74,

Thanks for your post.

Yes, please e-mail both your log and trace files to PlatformSupport[at]NinjaTrader[dot]Com. Mark the e-mail atten:Paul and include a link to this thread.

Please follow the steps below to manually attach your log and trace files to your e-mail so I may investigate this matter further.

Open your NinjaTrader folder under Documents.
Right click on the 'log' and 'trace' folders and select Send To> Compressed (zipped) Folder.
Send the 2 compressed folders as attachments to the email.
Once complete, you can delete these compressed folders.

[jakjak74]

Hi Paul
thanks. I sent the files.
Best

[jakjak74]

ok so I had to downgrade to TWS 944.3, but IB seems to say this won't be supported anymore after end of April 2017. So looking forward to having a newer version of TWS consistent with NT7.

Thanks Paul

[NinjaTrader_PaulH]

Hello jakjak74,

Thank for your post.

We are aware of the pending obsolescence and development is currently working on this to avoid any disruption in service.