Hello everyone!

I am doing a MR tomorrow (and into Thursday morning) that has me going all around the country on eight different flights. I had no troubles booking this. However, when I try to check-in, it gives me the "Unable to complete check-in. Your itinerary is not eligible for united.com check-in. Please proceed to the airport for assistance" message.

I am not terribly surprised, and I think there are various reasons this could be happening.

1) This itinerary is simply too complicated for the OLCI system to handle
2) Some of my flights are quite a ways away. My IAH-DCA flight is almost 48 hours from now
3) The DEN-LAX flight changed flight numbers I'm pretty sure, and the departure is now eight minutes late. I know this can cause some issues, so I think this possibly took my reservation out of sync

Anyone know what I should do? Just get to the airport early tomorrow and endure the strange looks? Or call someone right now? Thanks in advance for any help!