If you are using multiple iPads, "Please Set Main to Communicate with Server" is a message that will be displayed on the client iPads if Revel is not currently running on the Main iPad. In order for the iPads to be syncing up properly, Revel must be up open on the Main terminal. If you are receiving this message, make sure that Revel is open on your Main iPad and then then message should go away. If it does not, contact iPOS.
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