We recommend checking for conflicts in device manager and test the system without the IP camera or a different device to narrow the issue.
If i connect Ethernet port directly to Network Storage System and AMT port to IP cameras, Ethernet port work fine.
If i connect AMT port directly to Network Storage System and Ethernet port to IP cameras, Ethernet port will be disconnect.
We can repeat the issue in about 5 hours.
There is no confliction in device manager.
Have you tried a new BIOS? Versions 0053 and later have fixes for some LAN packet dropping issues.