I've never encountered this before, but could it be that the customer's
idle-timeout setting (on his/her computer) is set too low? I don't know
what the minimum value is that can be used, but we had a customer the other
day run into this problem--the value was apparently set to zero or 1 or
something and it caused them to get knocked off left and right.
Have you looked at the user's disconnect causes for these sessions to see if
they display any more info?
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