Problem with wired connection RBR40.

So, it sounds like your ISP modem is also a router. Is this correct?

10.x.x.x is a class A private IP address, meaning it is not routable on the internet at large, and while it's possible that that's the IP address your ISP has assigned to your modem, it's likely that your modem has a global IP address facing the WAN, and is using the 10.x.x.x network on the LAN side, and that the modem/router is performing NAT.

Then, the Orbi is connected to the modem/router's LAN port, and the Orbi is using the 192.168.x.x network, which is a class C private IP network, also not routable, and that the Orbi is also performing NAT between its LAN and WAN sides.

If this is the case, then you should either use the Orbi in AP mode, so that you only have one device performing DHCP and routing on your network, or keep the Orbi in router mode and either set the modem to bridge mode, or put the Orbi in the DMZ.

Generally, you should only have one device acting as a router and DHCP server on your network. Also, if you disconnect the Orbi from your modem (which I assume is also a router and DHCP server), and then connect the Lenovo storage device, the Orbi will be the only DHCP server the Lenovo can reach, and it will be assigned everything by the Orbi, giving it an IP address on the 192.168.1.x network. Then, if you connect the Orbi back to your modem, the Lenovo should retain the Orbi-assigned configuration. If everything else works properly, that should solve your problem (though, again, ideally, you would want to change the configuration on either the Orbi or the modem so that only one of them acs as a router). This may be an easier solution, though setting it so you only have one router/DHCP server on your network is a better solution.