Unable to change the proxy port number from 8443 to 9443 on api portal
If the gateway is enrolled with portal already follow below steps.
1. Follow the steps mentioned in our documentation on how to clean up gateway after failed deployment and remove all the portal related components from the gateway as mentioned here "https://docops.ca.com/ca-api-developer-portal-enhanced-experience/4-2/en/install-configure-and-upgrade/post-installation-tasks/enroll-a-ca-api-gateway"
2. Go to cluster wide properties and edit cluster.hostname as https://gatewayFQDN:port and reboot the node
For example https://mygateway.ca.com:9443
3. Once your gateway if up try to re-enroll with portal
4. Once done please check the proxy url on portal side and you should see the port should have been changed from 8443 to whatever you set in cluster wide property.