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[SAM+] Why does the system prompt user authentication expiration?

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Post time 2017-5-3 17:16:20 | Show all posts |Read mode
Why does the system prompt user authentication expiration?
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 Author| Post time 2017-5-3 17:16:45 | Show all posts
The possible reasons are as follows:
Generally, the NAS IP may not be added to the SAM  or incorrectly added to the SAM. You can check the authentication logs on the SAM and check whether the log prompts incorrect NAS IP.
The Su client does not select a proper network interface card when multiple network NIC exist, resulting in the authentication expiration.
The SAM is inaccessible. You can ping the IP address of the SAM on the N18K.
The VLAN ID of the access device is missing on the distributed device. The EAP packet cannot be transparently transmitted to the N18K, resulting in the authentication failure.
The 802.1x configuration must be removed on the access device. Otherwise, the 802.1x packets cannot be transparently transmitted to Core switch.

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