Hey, first up, not a dev, so speak slowly to me ;) ... had all our NLAuth stuff fail to authenticate on a new restlet we just built, even though same credentials are working on an existing restlet... so now we’re trying TBA... our integration is ruby based... anyone got any experience, despite getting postman to work, struggling to get the actual integration app to work... you guys any thoughts / advice?

Could you please provide your NLAuth string, be sure to * our the password

Use the Audit Trail search Setup > Users/Roles > View Login Audil Trail Bring in all columns in the "results" tab. It will tell you exactly what was wrong with the TBA request.