Terra Station TS-2RZ12 network configuration error now cannot access via web

[ahokanso]

I added a new route with a default GW and since doing this I cannot connect to my TS-2RZ via the network.  I do have a monitor connected to the TS and can access the Linux console.  When I try to "Route Delete -net 10.0.0.0 netmask 255.255.255.0 gw 10.0.0.11 eth3" I receive a message SIOCDELRT Operation Not Permitted.  Could someone please provide some guidance on how I can remove the erroneous route setting and get my NAS back online.  By the way I am logging in with the "admin" account.  Should I be using the root account? If so does anyone know the root password?