NV+ & Virgin Superhub no connection

What is the lan IP address of the superhub?
What is the IP address of the NAS when it gets it from dhcp?
What is the "default gateway" setting on the NAS?

What is the dhcp range?

Are there any other dhcp servers on your lan?

Have you tried a different ethernet cable between the NAS and superhub?

the IP of the hub is 192.168.0.1

IP of Nas via powerline is 192.168.0.14
default gateway is 192.168.0.1
range is 192.168.0.2 - 255
no other dhcp

tried 3 different cables

Can you see the NAS with raidar when it's connected to the superhub?
Set a static IP address on the NAS and see if you can connect to it.

Is your powerline network connected to the hub by cable?

You have tried a different port on the superhub I presume?

Is the SuperHub being used as a VM Router and Modem combined, or maybe the Hub is solely a VM Modem and a router/switch is involved elsewhere along the line from the SuperHub?

Except OP says there is no other dhcp server on his lan, assume it is acting as router/switch.

Maybe reboot the SuperHub?

Mrmandrill:

If your router's subnet is set to 255.255.255.0, the upper end of the DHCP range should be no higher than 192.168.0.254. It should not be set to .255 because that's a broadcast address. The misconfiguration is probably not causing this particular problem, but it would be a good idea to correct it anyway.

If I were in your position, I'd start with the basics. Remove all but the necessary pieces from the network: Leave your PC connected to the router, but unplug all the other Ethernet cables from the router's LAN ports. Plug the NAS into the router where the powerline adapter used to be. Turn everything off, including the router. Wait a minute, turn on the router, wait a minute, turn on the PC, wait a minute, turn on the NAS. Launch RAIDAR and see whether the NAS has been assigned a good IP address.

vandermerwe wrote:
Can you see the NAS with raidar when it's connected to the superhub? Set a static IP address on the NAS and see if you can connect to it. Is your powerline network connected to the hub by cable? You have tried a different port on the superhub I presume?

I've tried a static ip which again only works via the powerline adapter.
I've tried multiports and yes the powerline is wired.

InTheShires wrote:
Is the SuperHub being used as a VM Router and Modem combined, or maybe the Hub is solely a VM Modem and a router/switch is involved elsewhere along the line from the SuperHub?

Being used in router mode with no other dhcp server on network.
No other wired devices connected, only Wifi

That is very strange. The only difference then is that you have a couple of powerline adapters between the superhub and the NAS when it is upstairs.
Are other devices getting IP addresses while connected directly?