I got the following error message today trying to OLCI for a domestic trip
Check-in Advisory
We're sorry, we are unable to complete your check-in request.
•checkinadvisory.checkinadvisory.bulletgovernment
I've been denied OLCI on every flight, all airlines, the past 5-6 months when originating in the US. The kiosks at the airport won't check me in either. The agent has to type something in, and then I'm all set.
Does this have to do with Secure Flight?