timmmay:
Ethernet not working after waking from sleep would be annoying, but it's not particularly substantial IMHO. It sounds like a driver issue. Try a USB ethernet adapter if you have one, I have a couple that came with USB hubs that weren't expensive.
I've had some computers that didn't work well after waking from sleep, though they were self built. I just turned them off rather than using sleep.
Ordered one tonight. See what happens. Thanks for your suggestion.

