For the past few days, I tried numerous times to make seat reservations using Rail Planner. But when it routes me to the eurail website, I get this error:
Bad Request
Your browser sent a request that this server could not understand.
Size of a request header field exceeds server limit.
Has anyone encountered this error? I have a mobile pass for 2 Adults. I’m almost giving up hope, is it possible to just book the seats at the train stations on the day of itself? We will be travelling to Rome in early September.