Wisepad 3 freezes when taking payment

[gnrforever]

At least once a day our wisepad 3 freezes, it doesnt let us turn it off and no buttons work. When we try put an order through at the POS it just comes up trying to connect. We need to manually disconnect the wisepad from the app and add it on again a few times to kick it out of its freeze. Anyone else had this issue or have a solution?