Another unknown network detected
Another unknown network detected
You're asking about the modem type in use and confirming the connection setup. The Ethernet cable is correctly connected to a LAN port, not a WAN port. A photo of the connection to the modem or router would help verify this.
It appears as a public network profile but seems to block internet access. If that's the case, right-click the Windows start icon, choose Settings, then Network & Internet, click Open network and internet settings, select Ethernet, and toggle the Private radio button. You can also adjust your IP address and DNS settings if needed.