I have been trying to book an itinerary and can't get it to ticket. Finally called in and the 1K agent confirmed there are known IT issues that are being worked on. She was also unable to complete the purchase of the itinerary on her end.
I don't know if it's related or not, but every time I log into the United web site, I am getting the "we don't recognize this device" and have to answer the usual security questions. It's not just me as my S.O. is having the same issues.
So just a "heads up" if you are trying to book a ticket tonight.