Interesting issue here...
We have a client that has retail stores and they use POS systems. Basically they have a POS software that talks out to another provided to process transactions.
What happens is that periodically they get communication failures from the POS software. I have been told by the CC processor that the error means that the POS terminal did not receive the response back from their Data-Center.
My questions is this:
Where do I need to add the IP address ranges they gave me so that their system has unrestricted access into the LAN to communicate with the POS machines?
Let me know if there is a better place for this post or if you need more information.
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