This feature was developed to give Xbox users the ability to grant their console the MAC address of their PCs network adapter. This operation was confirmed to work by a lot of affected users (from every region). Clearing the Alternative MAC addressīefore you try anything else, you should start with what Microsoft recommends – Clearing the Alternate MAC address. If the ‘ Additional Authentication Needed‘ error is being caused by a local inconsistency, you can force the Xbox One system to clear any temp data by forcing an interruption during a test connection or by performing a power cycling procedure.Īnd lastly, if nothing else works, you should get in contact with your ISP and see if you’re under any security or contract violation that has determined them to limit your network. In this case, you will need to login into your router settings and disable access control or remove your Xbox console from the list of blocked devices. However, keep in mind that this type of error can also be facilitated by your router if you previously enforced a network-level block.
In case you’re encountering this problem, your first attempt at fixing it should be to clear the currently stored alternate MAC address on your console and see if that allows you to connect to the Internet normally. If that doesn’t work for you, you can also try using your PC’s physical address as the dedicated MAC address on your console. Most affected users are reporting that the issue started to appear out of nowhere (no changes were made to the Internet network) Additional Authentication Needed error Some Xbox One users are reporting that their Xbox One console is suddenly showing an ‘ Additional Authentication Needed‘ error whenever they attempt to connect their console to their home network.