Gaming Equipment Not Performing Normally Compared to Last Month Performance Data
Performance decline over a month is normal for some machines (due to wear and tear), but the decline should be gradual and within the manufacturer specifications. A sudden or significant decline that cannot be explained by normal variance is a red flag. The cause could be a machine fault, an external attack, or a change in the player demographics. The investigation requires comparing the current performance data to the historical data and identifying the point where the decline started. This article explains the investigation process and the likely causes.
Step 1: Chart the Performance Over Time
The first step is to create a performance chart. The X-axis is time (days or weeks). The Y-axis is the performance metric (revenue per day, payout percentage, or player win rate). Plot the last 60 days of data. Look for a discontinuity — a point where the performance drops suddenly. The drop may be a single day (suggesting a specific event) or a gradual decline over a week (suggesting a component wearing out or an attack that started slowly). The chart visualizes the decline and helps identify the likely cause. The chart also provides a baseline for measuring the recovery after you fix the problem.
The chart may reveal a seasonal pattern. Some machines perform differently in different months due to player demographics (tourist season vs. local season) or environmental factors (temperature, humidity). The seasonal pattern is normal. The decline is only a problem if it deviates from the seasonal pattern. Compare the current month to the same month in the previous year. If the performance is similar, the decline is seasonal. If the performance is significantly worse, the decline is a problem. The year-over-year comparison controls for seasonal effects. It is a more reliable indicator than the month-over-month comparison.
Step 2: Correlate the Decline to Events
Look for events that coincide with the performance decline. Events include: a new staff member starting work, a new competitor opening nearby, a change in the machine configuration (even if you did not authorize it), a power interruption, and a CCTV-recorded suspicious incident. The correlation does not prove causation, but it provides a lead. Investigate the correlated event. For example, if the decline started when a new staff member started, review their background and monitor their behavior. If the decline started after a power interruption, check the machine for damage. The event correlation narrows the investigation focus.
The correlation may also reveal an external factor that is not related to the machine itself. For example, road construction outside the venue may reduce foot traffic, causing a revenue decline. The machine is performing normally, but the player volume is lower. The fix is to mitigate the external factor (signage, promotions) rather than to repair the machine. The distinction is important because repairing the machine will not fix a foot traffic problem. The event correlation helps you distinguish between machine problems and external problems. The distinction determines the appropriate response.
Step 3: Check the Machine Health
Run the full diagnostic suite. Look for failing components: the mainboard (processor or memory errors), the power supply (voltage or current out of specification), the coin acceptor (jamming or misreading), the bill validator (failing to recognize bills), and the hopper (jamming or incorrect payout). The diagnostic identifies the faulty component. Replace it. The performance should recover. If the diagnostic finds no faults, the problem is not a hardware failure. Proceed to check for external attacks.
The machine health check should also include the firmware integrity. The firmware may have been modified to degrade performance. The modification may be subtle: a 2 percent reduction in payout percentage, a 5 percent reduction in player win rate, or an increase in the machine error rate. The modifications are designed to be invisible in the short term but costly in the long term. The firmware check requires the manufacturer tool or a bus monitor with firmware verification. If the firmware is modified, reflash it and install a bus monitor to prevent future modifications.
Step 4: Install a Bus Monitor
If the previous steps find no cause, the problem is likely an external attack that degrades performance. The attack may be subtle: an RF signal that causes the machine to pay out slightly less, or a diagnostic port device that modifies the payout percentage temporarily. The bus monitor detects and blocks these attacks. Install it and monitor for 7 days. The log will show the attack signals if they exist. The log also shows the attack pattern: the times, the frequency, and the signal type. The pattern helps you understand the attack and prevent future occurrences. The bus monitor is the final step in the investigation. It is also the protection against future attacks.
The bus monitor installation may also reveal that the performance decline is not an attack. The monitor records all bus activity. The recorded data may show that the machine is operating normally but the players are playing differently (perhaps they learned a strategy that reduces the house edge). The player behavior change is not an attack. It is a natural evolution of the player skill. The bus monitor data helps you distinguish between machine problems and player behavior changes. The distinction determines whether you need to adjust the machine configuration or the marketing strategy.
How to Recover the Lost Performance
After identifying and fixing the cause, monitor the performance for 30 days. Compare to the pre-decline baseline. The performance should recover to within 5 percent of the baseline. If it does not, investigate further. There may be a secondary cause that was not apparent initially. The 30-day monitoring also confirms that the fix was effective. If the performance declines again, the cause was not fully addressed. The continuous monitoring is essential for maintaining machine performance. It is also the best way to detect future problems early. Early detection minimizes the revenue loss and the repair cost.
Competitor Impact: How to Determine If Your Performance Decline Is Market-Driven
A new competitor opening nearby can reduce your machine usage and revenue. The performance decline is not a machine problem — it is a market problem. The check: visit the competitor venue. Compare their machine selection, pricing, and atmosphere to yours. If they offer a superior experience, your players are choosing them over you. The response is to improve your venue — new machines, better promotions, cleaner environment — not to repair your machines. The bus monitor will not help because the problem is not an attack. The performance chart comparison to the competitor opening date will reveal the correlation. If the decline started within 30 days of the competitor opening, the cause is probably market-driven. Adjust your business strategy accordingly.
Frequently Asked Questions
The performance decline is only 5 percent. Should I investigate or accept it as normal variance? Investigate. A 5 percent decline may be normal variance, but it may also be the beginning of a larger problem. The investigation is inexpensive (a few hours of your time). The cost of not investigating is the potential for a much larger loss. The 5 percent decline may be caused by an attack that will worsen over time. The early investigation catches the attack before it causes significant damage. The investigation also establishes a baseline for future comparisons. The baseline helps you distinguish between normal variance and real problems. The small effort of investigation is justified by the potential cost of inaction.
Can I use the machine built-in performance reports instead of creating my own charts? The built-in reports are useful but they may not show the detail you need. The built-in reports typically show daily or weekly revenue. They may not show the payout percentage, the player win rate, or the error rate. The custom chart lets you plot any metric you choose. The custom chart also lets you overlay events (staff changes, power interruptions) to visualize correlations. The built-in report does not have this capability. The custom chart is therefore more powerful for investigating performance declines. The chart can be created in a spreadsheet program (Excel or Google Sheets). The creation takes 1 hour for 60 days of data. The effort is justified by the investigative power.
The performance recovered after I installed a bus monitor, but I never saw any attack signals in the log. What does that mean? It means the bus monitor deterred the attacker. The attacker, realizing the machine is now protected, stopped attacking. The performance recovered because the attacks stopped. The bus monitor does not need to block an attack to be effective. The presence of the monitor is often enough to deter the attacker. They move to an unprotected machine. The deterrent effect is valuable. It protects your revenue without requiring the monitor to actively block attacks. The bus monitor is therefore a preventive investment as well as a detective tool. The dual role justifies the cost even if no attacks are ever recorded.