The reason for disconnecting was administrator's request.

I have one user only that shows up in the event viewer with event ID 20048
for Remote Access with The reason for disconnecting was administrator's
request. What would cause this? I am the administrator and I didn't request
it and do not have policy with a connection time limit. I have several users
including myself that VPN in from home but only one user is getting this
error and getting disconnected at different time durations. Any suggestions
where I should start looking? Her machine is Windows XP SP2 and the server
is 2000 SP4.