TD Ameritrade Connection problem

[vking]

Hello I am trying to connect to TDAmeritrade(TOS) for the first time on a new machine. I remember getting this working long time back on a different computer. Now when I try to enter the credentials in Ninja - this is the error message I get ( same credentials are validated in TOS platform without any problem).

would you please help?

Error message:
Unable to login in. Warning : 3 invalid login attempts in a rowwill lock out the account. Error message from TD Ameritrade: source is not whitelisted(logon failed)

Thanks

[NinjaTrader_Marco]

Hello vking,

Thanks for posting to the forums.

There is a new process that requires authorization from the connection on the TDAmeritrade side in order for the connection to continue working. Please recreate the connection following the steps below in the Connection guide for this connection:

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

Ensure to follow the Authorize button to whitelist this computer with this connection.

Please let me know if I may be of any further assistance.

[vking]

Thank you Marco. I could get this resolved. Apparently I was using 8.06 version - which didn't have "authorize" as an option. Downloaded the latest version and it works.

Thanks