Duo-v2 upgrade HELP

@vandermerwe,
@StephenB,
Fine. It is Saturday, and I am calmed down. My LAN uses the 10.0.0.0 series also. I use a sub-net mask at each client of 255.255.255.0.
My current DNS servers are 66.18.32.2 and 66.18.32.3. Can NOT insert these values either. :?
My gateway (router) is 10.0.0.12 / 255.255.255.0. The DHCP server is disabled at the router.
My other clients are:
PC 10.0.0.8 / 255.255.255.0
PC 10.0.0.6 / 255.255.255.0 (off)
PC 10.0.0.4 / 255.255.255.0
Server 10.0.0.1 / 255.255.255.0
Readynas Duo-v1 10.0.0.21 / 255.255.255.0
Readynas Ultra 2 10.0.0.19 / 255.255.255.0
Readynas Ultra 2+ 10.0.0.17 / 255.255.255.0
Brother 5370DW printer 10.0.0.15 / 255.255.255.0
The home LAN also has 2 Netgear GS116NA switches
The home LAN uses the 'hub-and-spoke' topology. PC-10.0.0.4 (2BR) connects to the router/gateway's switch port 04 (1BR).
PC's 10.0.0.6 and 10.0.0.8 are located in the dining room (DR). They connect to to the router/gateway via switch #2510 port 16 to the router/gateway's switch port 01 (1BR).
The server 10.0.0.1 and the Readynas's 10.0.0.17, 19, and 21 (1BR) connect to the router/gateway via switch #250D port 19 to the router/gateway's switch port 02 (1BR).

IP address 10.0.0.2 is not used.
IP address 10.0.0.3 is not used. (retired, dead printer)
IP address 10.0.0.5 is not used. (retired, dead PC)
IP address 10.0.0.11 is not used. (retired, dead router/gateway)
IP address 10.0.0.13 is not used. (retired printer) **
IP address 10.0.0.22 - 10.0.0.254 are not used.
IP address 10.0.0.13 is not used.

This AM, I did a direct ethernet connection between my DR PC 10.0.0.8 after I admin'd the PC's ip address to 192.168.168.8 / 255.255.255.0 to the Duo-v2. Yes, the Duo-v2 remains at 192.168.168.168 / 255.255.255.0, and, remains locked to 'get IPv4 from DHCP. I find this disappointing. Actually, I feel this is a major bug in RAIDiator v5.3.8, but that is another thread perhaps.
Yes, I can use the drop down Dashboard menu to select 'use this IPv4 address. Yes, I can enter a new IP address of 10.0.0.13 / 255.255.255.0 ** and enter a gateway/router address of 10.0.012. And, then I can click APPLY. The Dashboard window sorta blinks and I do get the expected msg window about possible loss of connection. I select 'restart' for the DUO-v2 and close the Dashboard/browser window. I sit and wait for the DUO-v2 to completes its' restart. Then I relaunch RAIDar on the PC. The DUO-v2 pops up displaying an IP address of 192.168.168.168, NO CHANGE!

I can suppose that my DUO-v2 has a dead Ethernet section and that it is time to contact Netgear for an RMA. It is still under warranty (registered FEB 2012). I have never had this much trouble doing a static IP address assignment to a ReadyNAS. So, severly confused I remain. :x I remain willing to listen, learn, and correct any ReadyNAS bad behavior I may have picked up over the years. :)