Posted 21 June 2011 - 11:40 AM
I've been trying to implement Wake on Lan so that I can wake up my machines before business hours to run anti-virus scans and any other maintenance that I need to run so there is no slow down during working hours. It works just fine on my older Dell Optiplex 620s that run XP Pro, but none of my new Dell Optiplex 780s or 980s running Windows 7 will wake up.
The core problem seems to be that the Network adapters are not in a state where they can receive these packets. The indicator is that none of the lights are on for the NICs in the newer machines, where they are for the older machines. I've been into BIOS and enabled it on ALL of the machines, and I've also checked the Windows power settings on the newer machines. I'm obviously missing something, since I'm sure that the newer cards support this. The new machines are running Intel 82578DM network adapters on the motherboard. Any help is appreciated. Thank you.