The Exp counts has to do with Usage Expiration. You can set the card to expire and no longer work after a certain date or a certain number of uses. And it refreshes it's information every day. If you re download the card database, do they work again? Being that the system is not recognizing the cards, I'd be suspiciuos of a problem with the panels themselves. Because I believe that even if the cards are set to expire (you can check that on the Access tab in the card database), I do not think it actually deletes the card, just disables it. Do you have a problem with schedules? Doors that are supposed to unlock at a certain time that no longer does? There is a battery on the MLB which leads me to think the memory is volatile and if there's a power hiccup it might wipe it out. But I would think that would mean it would lose everything, but I could be wrong about that.
There's no place like 127.0.0.1
"Secular nations have one thing in common-mass graves, and the reason is that they believe the government is the final arbiter of right and wrong and good and evil." -Rob Schenk
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