I installed an Intel Ethernet (PCI) adapter, disabled the on-board ethernet adapter, and the problem is gone. My hardware is the Intel D945GCLF2 Motherboard, and I've seen postings as old as 2008 with comments on the low-end NIC causing issues from day-one. I hope you all are as fortunate to get around your situation, as well.
I installed an Intel Ethernet (PCI) adapter, disabled the on-board ethernet adapter, and the problem is gone. My hardware is the Intel D945GCLF2 Motherboard, and I've seen postings as old as 2008 with comments on the low-end NIC causing issues from day-one. I hope you all are as fortunate to get around your situation, as well.