I am also on the Royal currently and yes it has happened to me. I sign in and I am immediately logged off. I was able to login last week on board but not now. This has happened on previous cruises then ok when I get home. On my last cruise I went to internet person for help. He could do nothing. The forced logoff must come from Princess. Is it they do not want us on personalizer while at sea? Weird!
I went to the Internet Cafe and used a computer to get free access to my account. No problem!