Since it takes 2 seconds to see the mac, and then spoof the mac.
If you need further assistance, please submit a service request or CHAT with TAC. Mac filtering is a method of control - its not a valid security feature. Select "Settings" > "System Settings" > " System Information.".The wired MAC address will be displayed.Select "Settings" > "System" > "System Information" (PS4) or "Console Information" (PS5).Also make sure you didn't accidentally connect your xbox to the wireless network (which may be what they're seeing) 2. The wired MAC address will be displayed under the heading "Alternate MAC Address." Just submit a picture of your Wired and Wireless MAC addresses to prove that you registered your xbox using the wired MAC address.If you want to deny specific traffic like http/https then specify the service. Create a firewall access rule for LAN -> WAN with below settings: With the help of above settings you can control the traffic from LAN -> WAN with computers MAC address.
• Select "Settings" > "System" > "Network Settings" > "Wired Connection" > "Configure Network" > "Additional Settings" > "Advanced Settings." Address Detail:The wired MAC address will be displayed at the right of your screen.Type in the MAC address you want to allow or deny to access the router, and give a description for this item. Go to Wireless -> Wireless MAC Filtering page, click the Add New button. Select "Settings" > "Network" > "Network Settings" > "Advanced Settings." For Xbox One on the Xbox One, a GameFAQs message board topic titled alternate Mac address.With your MAC address ready, please submit an online request or contact the ITS Service Desk. The MAC address will be displayed on the right side. The wired MAC address will be displayed at the right of your screen under "IP Settings." Note: The Xbox One will have a different address for the wired and wireless adapter.Select "Settings" > "Network settings" > "Advanced Settings.".
*Please note: All gaming consoles must use a wired (Ethernet) connection therefore, you will only need to note the wired MAC address. On some TVs, the wired MAC address will be labeled "RJ45."
Please consult your TV manufacturer's website or customer support.