![]() Wired Autoconfig Event Viewer logs helps in troubleshooting 802.1X in Windows 10 802.1X Authentication and Remote Desktop However, there is a special log location for the Wired Autoconfig that does give some information on why authentication may be failing. There isn’t a lot of apparent information readily available when authentication fails. Setting the Wired Autoconfig service to Automatic and StartedĪ quick note here about troubleshooting. Navigate to the Authentication tab and then make sure the Enable IEEE 802.1X authentication checkbox is enabled. The configuring of 802.1X network authentication begins on a Windows 10 client as you would expect – in the properties of the network connection. ***Note*** as we are not going into the switch configuration of a particular vendor in this post, we are assuming here that you have a correctly configured RADIUS server for an authentication server and a correctly configured access switch serving as the authenticator. Now that we have an idea of how in basic terms 802.1X works with the switch and then the RADIUS server, let’s see what is required to configure Windows 10 for 802.1X user authentication. To properly interact with 802.1X infrastructure, the client or supplicant must have the software that allows interacting with the 802.1X infrastructure. Configure Windows 10 for 802.1X User Authentication It sends a reply back to the switch as to whether or not the authentication request is valid and if the client is validated to access the network and other switch services. Once the authentication server replies and sends the frame back, the switch strips off the header once again and reencapsulates it back into the Ethernet format.Īuthentication Server – The server that performs the actual authentication of the request. ![]() The Ethernet header is stripped off on the way to the RADIUS server, and the EAP frame is encapsulated in RADIUS format. When the switch receives the EAPOL frames, it relays them to the authentication server. It is an intermediary between the client and the authentication server such as a RADIUS server. The client must run 802.1X compliant client softwareĪuthenticator – The authenticator is what physically controls access to the network based on the authentication status of the client. The 802.1X authentication mechanism is a Layer 2 protocol since it only deals with frames and does not require DHCP services, etc.Īs referred to above, there are three components or roles that are required in the chain of 802.1X authentication – the client, authenticator, and authentication server.Ĭlient – The client is the end user workstation or device that requrests access to the LAN and it responds to requests from the switch. ![]() Using 802.1X, the authenticator (switch) is a facilitator that carries information received from the supplicant in EAPOL (EAP over LANs) frames to the authentication servers such as a Remote Authentication Dial-In Server (RADIUS) server running on Microsoft Network Policy Server. It is based on the Extensible Authentication Protocol (EAP). What is 802.1X authentication? This is an authentication based on the IEEE 802.1X protocol between the supplicant (client) and the authenticator (network access switch). Let’s take a how to configure Windows 10 for 802.1x user authentication. In this post, we will take a look at what is required on the Windows 10 side of things to get up and running with 802.1x authentication to allow interacting with an 802.1x compatible switch to provide policy-based networking and identity-driven network control. Extreme Networks has a really slick solution for applying policies at the port level that allow effectively microsegmenting devices at the physical port level and configuring an identity-based network that can exponentially increase security. There are many cool things you can do with this port level authentication for physical devices that are connected to a supported switch. In enterprise networking, many are familiar with 802.1x authentication mechanisms that allow performing authentication at the port level on a supported switch. ![]()
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