On Mon, 27 Dec 2010 17:37:50 -0500 E Westphal wrote:
I've tried all the obvious things. Cables, router ports, rebooting etc. It's quite strange. From a cold bootup, it's fine. Then about 45 minutes later it starts to act up. None of the obvious things seem to help. Then, about 90 minutes after bootup, everything is fine again! Rock solid! Ethtool and anything else I've tried fails to yield any hints, thus my question to all of you.
It sounds very much like a hardware issue, more specifically a cold solder joint whose properties change as the unit warms up.