We have had a Swiper 1 device for probably a couple of years now but have just recently gotten everything up and running. Last weekend we tested the system and were able to manually enter a credit card payment using my phone but we were not able to successfully swipe my credit card. We'd get to the screen with the graphic that shows you how to swipe but in spite of multiple tries swiping, we always ended up at the Re-Swipe/Manual Entry/Cancel screen. Any idea what we're doing wrong and/or how to make it work? We have a big sale coming up November 1st and 2nd and would like to have it working by then so we don't have to use Square

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