This issue occurs when OfficeScan agents with different IP addresses report to the server using the same MAC address. The server fails to identify the agent as a new agent, and prevents them from registering appropriately with the server because that MAC address is already in use.
To resolve the issue:
- Make sure you have installed OfficeScan 11.0 Patch 1 or later.
- Open the ..\Trend Micro\OfficeScan\PCCSRV\Private\ofcserver.ini file.
- Look for [INI_SERVER_SECTION] and add the following line:
[INI_SERVER_SECTION]
EnableCheckClientMacAddress=0Where:
0 = Allows OfficeScan agents to report to server using the same MAC address
1 = (Default) Prevents OfficeScan agents from reporting to server using the same MAC address - Save the file.
- Restart the OfficeScan Master Service.
- Perform a manual update on one of the affected machines.
Any machines with the same MAC address should now appear on the web console.