Cant access NAS from client bridge

[daz24c]

I have a NAS upstairs connected to my router,xbox etc and have setup a client bridge using dd wrt on another router downstairs.
Everything connects to the internet fine downstairs but i am unable to connect my NAS to stream anything.
Pc and xbox upstairs and anything wireless connect fine to the NAS its just anything wired to the bridge downstairs that cant.
The firewall is turned off on the client bridge and is connected via WPA2 AEK. Both routers are running ddwrt.
Does anybody have any idea on how to access the NAS downstairs through the client bridge?
Thanks

[talisker]

If you ping the NAS, does it show up in the arp cache?

In Windows you open up cmd and type "ping 192.168.x.x" or whatever the NAS has. Then type "arp -a". Your NAS should show up there. If it does not show up then there is something with the network itself, if it shows up it is more likely blocked by a firewall or similiar.