DavidHB

Essentially, you are talking about connecting the NAS to the network you don't own. The NAS will have its own MAC address, so unless you can persuade the owner of the wired network to filter in the NAS, and also allow access to it from those users (and only those users) who should have access to it, what you propose will not be possible. As your wired network presumably belongs to some (educational?) institution, which clearly (but to me understandably) enforces some tight networking rules, I'd forget that option.

How close are the other intended users of the NAS? Could they use the wireless connection that you own and control? There is no logical difference between wired and wireless connections, they'd just all be connections on the same network which happens to be served by a wireless router.

DHCP may be enabled on your own router, but it is clearly not enabled in the network connection of the NIC connected to the router. This is probably because you have set an explicitly associated an IP address with the NIC; in the properties of the IPv4 connection, you should select the option to obtain an IP address automatically; the NIC will then be allocated an address by the DHCP server on the router.

Hope this helps,

David