Q1. Why the PC does not have communication with the controller even though I have setup the system step by step based on the manual given? Q2. I have a push button installed at my site, however, the door cannot be released from the PC. Q3. I installed a new card to the system, however, it seems like the newly installed card cannot be used or is not stored in the controller. Has anything gone wrong? Q4.. I have shut down my PC for some times due to certain reasons. When I turn on my PC again, some of the transactions are missing, why? Q5. I wonder why the operation of my controller is not following the Time Zone Setting,which I set previously? Q6. I have received some funny/corrupted transactions from the controller, what should I do? Q7. I have installed the whole system as guided, yet, why the door is always unlocked? Q8. Sometimes, I found that the time on the controller is different from the time on the PC. why is this happening?