We are currently using a web based system (RM easymail+) for student emails. However when the student logs in, they are logged straight out with the message "session has expired".
Obviously i assumed this was an issue to take up with RM, however on certain machines it seems to log in fine.
The same issue occurs if they try and log into say..a phpbb forum. They can log in, however when the page refreshes they are logged straight out.
Does anyone have an idea on what this issue could be. Some GPO option perhaps? However if it was a GPO, it would do it on all machines rather than on certain ones. It happens in both IE7 and IE6, but not in firefox. Strange huh.
Any clues would be greatly appreciated.