You can renew an existing certificate by following these steps:
To Renew a CertificateClick Server Certificates tab, select the certificate and click Renew button.
Validate Token password
Enter the password for the token if required. Otherwise click Next to continue.
Enter Validity Period
Review the certificate details and provide the validity period in months.
Review
This page provides you with the summary of selected options. Click Finish to complete the renewal process.
Note - Ensure to add the Administration Console site URL to the list of sites allowed to open popups and then renew the certificate again.