When 802.1x port-based security is configured for a LAN port, the first host that attempts to connect to this port is “locked” to the port. In order to connect a different computer to the port, you must first reset 802.1x locking.
To reset 802.1x locking on all ports
The Ports page appears.
A confirmation message appears.
The 802.1x status of all ports is reset to "Unauthenticated".