Acer N4640G



  • Hello,

    I have speak of this with Thomas but I don’t want to make him spend too much time on my problems.

    We have received 3 type of Acer computer this year X2640g, X4640G and N4640G.
    Both X are working fine with undionly.kkpxe but N isn’t.
    N is only working with ipxe.pxe.
    Thomas asked us to use the 10s delay pxe boot file since he thinks it’s because RSTP that is disabled on switches but problem remain the same.

    Here are the 2 screenshot using undionly.kkpxe.
    First is normal one, second is 10s delay one.

    0_1479889352346_2016-11-22.jpg

    0_1479889366793_2016-11-22 (1).jpg


  • Moderator

    We have received 3 type of Acer computer this year X2640g, X4640G and N4640G.
    Both X are working fine with undionly.kkpxe but N isn’t.
    N is only working with ipxe.pxe.

    This tells me that the ‘N’ system is a uefi system and the ‘X’ systems are bios (legacy) systems. You must use the right iPXE kernel with the proper firmware or it won’t work.

    As for the error above. It appears that the undionly kernel can see the network adapter, but not communicate on the network. I too suspect that this is a spanning tree issue. The problem is that spanning tree takes 27 second to begin forwarding traffic. The 10 second delay kernel is not sufficient to bridge this gap. Its best to enable one of the fast spanning tree protocols on this switch port. OR as a test, place a dumb switch between this target computer and the building switch. This dumb computer will keep the building switch port in the forwarding state while the target computer boots. If inserting the dumb (unmanaged switch) between the building switch and the target computer works, then you do have a spanning tree issue.


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