I know that networking is not foremost on most restaurant owners minds but it is an important topic. What we mean by segmenting your POS is that you should keep it separate from other, non-critical, computers on the network.
Segmenting the network can involve putting the point of sale on a router that is has nothing else on it. A typical configuration will see the POS on one router and other store computers or wireless on a second router.
The important thing is too keep all of your POS networking on one router so that there is no cross communication between computers and other devices in your store.
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