They would appreciate any help you can give on this matter. If the patron has moved offices and is keeping the same computer their IP address needs to be changed. So, to reiterate, if a user moves their computer from one box to another they will need to change their IP Address. He can then update the database as needed. Also, call if you are setting up a new computer for the same reason listed earlier.
Users can move freely from one box to another and still access their same services.