Recently I scheduled my computers to power on using Wake-On-LAN. There seems to be an issue with some of the computers not turning on. All the computers have identical hardware and have the same BIOS settings.
I did some investigation and I noticed that the computers that were not turning on did not have their MAC addresses listed in the switches. If I power the computer on long enough for the switch to add the computer's MAC and then power it off, wake-on-LAN will work.
I think there is an issue with the switches deleting the MAC adresses out of it's table? After some research I found the Cisco switches hold this data for 300 seconds (5min) then delete it.
I do not want to statically set all the MAC addresses in the switches if I do not have to. I have heard you can extend this deletion time, but it is not reccomended and this would be a troublesome when moving computers around.
Am I missing something? Anyone else using wake-on-LAN? Thanks for the help!
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