wakeonlan works with 8.04 but not after running 9.04 on a Dell optiplex gx520 with Intel 945G chipset and broadcom BCM5751 ethernet. ethtool shows wake-on 'g' supported and enabled. Both S3 and hibernate do not wake.
Ethernet LED is on. Version 8.10 not tested.
I also tested a similar Dell GX280 which the same Gb ethernet, but older Intel chipset, and it still wakes on lan correctly with 9.04.
I tried removing NetworkManager, but no improvement.

Does anyone have this working on a gx520 or gx620?

Intel 945G Chipset
Tigon3 [partno(BCM5751PKFBG) rev 4001 PHY(5750)]
Broadcom Corporation NetXtreme BCM5751 Gigabit Ethernet