Have now set up my n54l with XpEnonlogy and transfer over from my old nas (synkolgy ds213j) to my new (n54l with 3x3 TB in RAID5 and with the 2 GB frame included). It is linked by cable to the router both and both have gigabitenthernet but get a terribly bad transmission. 2.17 tb should take 2 days to carry over and check it on the traffic on the NAS that send, send it with about 5-7 mb / sec.
I have exactly the same configuration in both in settings.
Edit : It runs XpEnonlogy 4.2