In the VIP Gateway > Setting, the VIP Certificate or other SSL Certificate cannot be removed or changed.
Failed to delete 'certname'
When viewing the Cert:
Invalid input string format. Check the input for invalid characters and try again
Possible corruption in the VIP key store.
Note: An Active SSL cert cannot be deleted from the keystore while the SSL cert is in use. To avoid access denied errors, upload and install the new SSL certificate to VIP Manager, then set dependant VIP Services to use it before proceeding:
Open a Symantec Support case.
From an elevated command prompt: Navigate to \Program Files (x86)\Symantec\VIP_Enterprise_Gateway\server\Webapps\configs, then send the ManagedAuthentication.xml file to technicians assigned to the case.
Navigate to \Program Files (x86)\Symantec\VIP_Enterprise_Gateway, then send the license.txt file to the technician assigned to the case.
The technician will respond with the decrypted password for the DEFAULT and (if necessary) VIPCDK keystores.
Open an elevated cmd prompt and navigate to \Program Files (x86)\Symantec\VIP_Enterprise_Gateway\server\keystore