We have a few people (2 of 50) that seem to get prompted for a password all the time. One of them I have changed their network adapter power setting to never shut off. I made sure the Always prompt for logon credentials is not checked. I have tried unchecking connect to Microsoft using HTTP. Nothing seems to help. They were find for the longest time and I am not sure what happened. They sit close to each other but not everyone in that area is having the issue. Email continues to work for them but the prompt seems to be always there. we have also tried closing the program and restarting it and rebooting the computer.