Driver issue 14e4-1678 (HP)

[robinsmidsrod]

Are you using the latest version from git? There were some patches added to the tg3 driver during summer 2013 that affects link detection behavior.

Also, you should go through all the tests at http://ipxe.org/dev/driver to understand exactly where the issue is happening. The discussion on the mailing-list prior to getting the patch showed that using a 100Mbit hub/switch instead of gigabit actually made link detection consistent. That is obviously not a long-term solution, but it helps narrow down the problem. I've also heard that HP servers might require a firmware update to fix an issue in relation to the tg3 driver.