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[WLC] How to update the expiration date of self-signed certificate for ADMIN using web interface



Article ID: KB34174 KB Last Updated: 03 May 2019Version: 1.0

This article explains how to extend the expiration date of a self-signed certificate for ADMIN using WLC web interface.


If the admin certificate expires, you cannot access the WLC and Ringmaster web interfaces. Follow the steps below to extend the expiration date of the self-signed ADMIN certificate.

  1. Log into the Web GUI of the controller:

  2. On the top panel, click Maintain > Update certificates > start

  3. From the drop down list, select “Admin” and click “Next

  4. From the operation drop-down list, select “Generate new keys and install a new self-signed certificate” and click “Next

  5. Select the country name, fill in the certificate data, and click “Create key and certificate” to generate the self-signed admin certificate.

  6. To verify the expiration date of the admin certificate, login into CLI of the WLC and enter the command, #show crypto certificate admin

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