X440-G2 / NAC - 802.1x authentication session disconnects after some time with error "The session is no longer active due to: Admin-Reset"

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I have X440-G2 switches and the clients are 802.1x authenticated with NAC. In recent days i found that clients disconnect automatically in less time with different reasons as listed below.

"The session is no longer active due to: Admin-Reset"

"The session is no longer active due to: Session-Timeout"

I have checked the timeout settings on NAC manager as well as switches. It is default and looks normal. No changes done. 

Couldn't able to predict the cause for this issue.
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Alagesan Jeyaraman

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Posted 1 year ago

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Karthik Mohandoss, Employee

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Alagesan,

To start with, Does the "show log" in the switch gives a reason why the clients are getting disconnected?