Can Xbox 360 Connect to Internet Through a TV Box? No - TV Box Is a Client, Not a Router

No. A TV box (cable/streaming box) is a client device, not a router. It cannot share its internet connection with other devices.

Proper Ways to Connect Xbox 360

• Wired: Ethernet cable from Xbox 360 to your router/modem.
• Wireless: Xbox 360 S/E have built-in Wi-Fi; original 360 needs the official Wireless Adapter (or Ethernet).

The TV box and Xbox 360 should each connect independently to your home router.