I would perform the following checks in order to debug this issue:
* I would verify if the ports used by the Denodo applications and tools are in use by any other applications.
* Also, I would ensure that firewall is not blocking the ports required by the Denodo Platform.
You can have a look at the [Default Ports Used by the Denodo Platform Modules](https://community.denodo.com/docs/html/browse/7.0/platform/installation/appendix/default_ports_used_by_the_denodo_platform_modules/default_ports_used_by_the_denodo_platform_modules) section of Denodo Platform Installation Guide for more details on the ports required by Denodo Platform.
Hope this helps!