Even after successful installation or upgrade of Access Gateway, the health shows failure in starting ESP. After an fresh import of Access Gateway in Administration Console, Access Gateway Health displays “ESP Failed to initialize: Unable to read <keystorefilelocation>”. The keystore file can be Connector, Signing, Encryption or Truststore.
To workaround this issue:
On Access Gateway, go to the <keystorefilelocation> location as specified in the health error message.
Delete the keystore/truststore indicated in the ESP error message.
In Administration Console Dashboard, click TroubleShooting > Certificates.
Enable the keystore device or cluster that has been deleted in Access Gateway and it needs to be re-pushed.
Click Re-Push Certificate.
Restart server provider of Access Gateway.