IB Failed to process server API

[Steve R]

NT8.0.12.0 64BIT
TWS969.2

working fine all week, then woke up this AM to a 'yellow' connection button on NT. Looks like an IB thing and not NT?


EDIT:

Still have NT7.0.1000.36 installed so tried it. No problems connecting with it.

[NinjaTrader_EricB]

Hello Steve R,

Thank you for your post.

Glad to assist. Yes, often this indicates an incomplete connection to IB. The first thing I would recommend doing is shutting down NinjaTrader and restarting your modem/router.

If you have an antivirus/firewall installed, please verify NinjaTrader is still currently added or add as an exception if needed.

If you still see the same, please check the Log tab and let me know if you see any error message.

[Steve R]

rebooted modem, computer, no a-virus installed etc etc etc.......still works with NT7 does not work with NT8

"IB Failed to process server API request:'Error processing request:-'b0' : cause jextend.b0.i(b0,java:301)"

[NinjaTrader_EricB]

Thank you for your reply.

Sorry to hear that didn't help. Please use the link below to uninstall/reinstall Java and verify the version/setup of TWS.

https://ninjatrader.com/ConnectionGu...nnection-Guide

[Steve R]

OK done, and no change.

NT7 still works, NT8 does not, with same error.

[NinjaTrader_EricB]

Thanks for taking the steps to verify these items. Please write into to PlatformSupport[AT]NinjaTrader[DOT]Com along with your log and trace files and a link to this forum post.


Please follow the steps below to manually attach your log and trace files to your response 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 this email.
* Once complete, you can delete these compressed folders.

[Steve R]

done.

looking forward to hearing from you on this.

[esteban_rojo]

Hi!
I have the same problem.
Done all recommended measures in this post but still no success.
Have you solved the issue?


Thank you!

[NinjaTrader_PatrickG]

The solution that was found for Steve R in ticket #1851151 was to repair his NinjaTrader installation. The repair may or may not work depending on how recently you installed NinjaTrader, so, I advise a 'soft' uninstall and reinstall (this will not remove any of your custom files or settings):

• If possible, copy your license key from the Control Center > Help > License Key.
• Close all running applications.
• Uninstall NinjaTrader within Windows Control Panel.
• Navigate to C:\ > Program File (x86) > Delete the 'NinjaTrader 8' folder if it exists
• Reboot your PC.
• Once these steps are completed, download and install NT8 from the link below.
• http://ninjatrader.com/PlatformDirect

If the issue persists, please follow Eric's instructions in post #6 to contact us via email.

[Steve R]

Hi!
I have the same problem.
Done all recommended measures in this post but still no success.
Have you solved the issue?


Thank you!

As i recall i did all of the above and nothing really worked. The quoted 'fix' , wasn't. Then it randomly started working days later and we don't really know why.


I haven't used version 8 since.

[esteban_rojo]

Hi Patrick and Steve!

The fix Patrick suggested worked.
The key for me was to delete the 'NinjaTrader 8' folder in C:\ > Program File (x86).

Thank you very much and have a great weekend!