I hope to get back to it tonight.
I am thinkin g on this and wondering where the issue might be. It is implossible that three LAN boards can be bad (and I know thay are not).
I know that the LAN cable is delivering a signal as demonstrated by the Apple Laptop functioning fine on the netwrk and internet.
Yet the machine in question insists that the LAN cable is unplugged at the ONboard port as well as at the three PCI LAN ports.
This does not strike me as a MOtherboard issue, but rather as a software issue.
Is that where you are?
Thank you so much