When using Last Inventory and Agent Connection Time to filter, the time stamp may vary.
Last Inventory Time and Agent Connection Time are different data.
Agent Connection Time is the time that an agent connected to the K1000 Server, the time stamp of AMP connection established.
Last Inventory Time is the nearest agent synchronization time.
After the agent is connected, the agent may sync with the server many times. Every synchronization will refresh the Last Inventory Time.
This is normal. Please understand the different time stamp and use the correct one to filter.