The e1000e network adapter fails to initialize when the system is cold booted. A message similar to the following can be found in the kernel log:
[ 1.671757] e1000e: Intel(R) PRO/1000 Network Driver - 1.5.1-k [ 1.671760] e1000e: Copyright(c) 1999 - 2011 Intel Corporation. [ 1.671803] e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 [ 1.671815] e1000e 0000:00:19.0: setting latency timer to 64 [ 1.671932] e1000e 0000:00:19.0: irq 50 for MSI/MSI-X [ 2.721379] e1000e 0000:00:19.0: PCI INT A disabled [ 2.721385] e1000e: probe of 0000:00:19.0 failed with error -3
If the system is warm booted, the problem does not occur.
Upgrade the motherboard firmware to the latest version: