Clients pass 802.1x authentication on an S series switch, and are disconnected after 10 seconds

For S series switches except S1700 switches, if handshake with online 802.1x users is enabled on a switch, the switch sends handshake packets to a client after the client is authenticated. If the client does not respond to the handshake packets, the switch forces the client offline.
The client goes offline 10 seconds after it is authenticated. This may be caused by a handshake failure. In this case, run the undo dot1x handshake command in the system view to disable the handshake function.

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