Wireless access to NAS

Hi

I have a NAS box plugged into my Sky router via a 4-port hub. My PC is also plugged into the same hub.

If I want to access the NAS’ GUI from my PC I simply hit the NAS’ static IP address from any browser, log in and I’m off and running. However if I try to hit the same IP address from either my iPhone or my laptop (both on WiFi) then I’m unable to do so.

Is there any special configuration I need to do at the router to make that address available wirelessly? Or do I need to have the NAS networked directly into the router rather than being through the hub?