Dropped Sessions on Live Site

[eluser]skunkbad[/eluser]
I don't know if it is the case here, but I've worked on projects where the user was on the other side of the world. Their timezone was so far away from the server timezone that the cookie instantly expired. It sounds like that may be the case here. If you can detect the user's timezone then you may be able to set a custom expiration date, but I've done just as you have, which is to set the cookie expiration out to XX hours.