The Micros Server and cash registers were moved into a separate vlan on October 28, 2003 in an attempt to overcome system problems. The cash registers were having problems operating on-line in the congested Wheelock subnet. After some period of time, the cash registers would lock up, failing to process transactions.
The cash registers connection to the Micros Server seems much more stable now that they are in a separate vlan with a much smaller broadcast domain.