I was affected as well. My IAH->SEA 7:10 PM Central flight took off 4 hours late. It’s 4 AM central and we’re just descending to land in Seattle. Communication from the airline was basically nonexistent and the poor ground crews didn’t get any information either. I thought we wouldn’t even take off because of crew time limits, but we were lucky to have a fresh one. The system apparently came back and died several times before we could take off. We pushed away from the gate because the system was working and then had to wait on the tarmac for an hour because the system was down again. Not a fun day for air travelers.