I am replacing all of my PCs with new ones. We have been using exchange online for about a year with no problems. I have installed Outlook 2010 on the new computers and cannot get them to recognize the existing passwords. I then reset one of the passwords and still I couldn't complete. I left it over night and the next morning it accepted the reset password instantly. I do not want to change the other passwords and I do not want to wait 24 hours for each machine to recognize them. I don't understand waht is happening< it is very frustrating, can someone help me with this please?