For anyone interested, FYI:
From Thecus:
1) You should be able to connect a computer directly to NAS unit, using a straight through cable (regular Ethernet cable). We've tested this in our lab, additionally it is one of the diagnostic suggestions when users are having difficulty connecting to Thecus NAS units. We are them specifically to do this, connect directly.
2) But recently we have had several users indicating that they too have difficulty doing the straight connect with a MAC Pro. Not sure what is different with MAC Pro's Ethernet.
3) For the time being, can you use a Hub/Switch/Router to connect your MAC to Thecus NAS unit. Be sure to connect to the Ethernet port that is the lowest (Label Port #1, called WAN Port in Web Admin User Interface)
4) Aftering using a Hub/Switch/Router, you should be able to connect to NAS unit.
a) Use Setup Wizard to config NAS to be in the same network as your computer.
(see page 11 of N5200 user manual)
b) Start a browser and login to NAS Web Admin page (Example:
http://192.168.1.100/)
c) Create RAID for the installed Hard Disks
(Page 24)
d) After RAID creation is complete, which may take hours. Create folders in NAS.
(Page 28)
b) Connect MAC to NAS unit
(Page 56)
Once your MAC is able to connect to NAS unit, you should then be able to store files onto it.
Best Regards !
Thecus Support English Team
Thecus
http://www.thecus.com/
Thecus tSupport Center
http://support.thecus.com/
I ultimately connected to the N5200 through an old Netgear WGR614 as a switch/hub (I currently connect to the internet through an Airport Express). Initially, the Thecus set-up wizard asks to set password and then choose between a static IP address or DHCP. In my circumstance, this choice was the key. After numerous unsuccessful attempts to connect with a static IP, I changed this setting to DHCP and connected to the web-based wizard immediately (I'm probably not savvy enough to make the correct static settings on the computer). In addition to changing to the Thecus DHCP choice, the computer's ethernet is also set to DHCP, as well.
Next test is to see if a direct connection works after the RAID is configured...