I'm flying tomorrow, 2 flights outbound, same scheduled airline. I've checked in online many times before and never had a problem.

This morning however, it only issued boarding passes for the first flight, and not for the second one from Amsterdam to Geneva. I phoned the airline, they told me to cancel that check in online and do it again.

I did it again, while on to the phone to the airline again, and got the same result. The airline person said she could see what I was doing, couldn't explain the (their) inability to let me check in online for the second connecting flight.

I don't understand. Since our credentials are good enough to get boarding passes for the first flight, why not for the second one? I've checked flight status at all three airports - all are functioning normally. I've even 'tried to book' tickets on tomorrow's Amsterdam>Geneva to see if that's been cancelled and they didn't tell me; but no, tickets are still on sale.

Has this happened to anyone else? How concerned should I be? It is not only worrying but also inconvenient - with incomplete boarding passes we will now have to turn up at the departure airport much earlier than planned.

Is the second flight more than 24 hours out?

Is the operating carrier the same (i.e. whose metal are you on)

What did the air carrier(s) say when you called to ask? Nobody here can do anything other than speculate. But, the carrier can tell you whether or not there's a problem.

There are a ton of reasons.....

its possible your second flight is operated by another carrier so you cant check in on that one.

Its possible you cant check in for the other flight because its more than 24 hrs before that flight departs.

Its also possible your second leg flight got cancelled and you havent heard about it. Since the time of your booking they discountinued that route or they seriously redid the schedule. Had this happen to me with a Delta flight when they went through post merger with NW redoing their schedule and downsizing Cincinati as a hub.

Before your flight out talk with a gate agent to fix this.

this is a standard stunt by LH/UA when they do not have a plane. they will let you take the flight from italy to fra/muc, and there is no plane onward to usa. (very frequent in winter). i have never asked about compensation for this trick, but will try next time.

Just get your second boarding pass from the transit desk at AMS. There could be any number of reasons why this is happening, most of which are innocuous.