In your situation, I would send a ping request to the License Manager server by invoking the following URL from QA environment.
`http://<solution manager host>:10091/pingLicenseManager`
If the server is up and configured correctly, this endpoint returns the HTTP code 200. Otherwise, the request fails.
For more details, you can also refer to a similar community Q&A [here](https://community.denodo.com/answers/question/details?questionId=9060g0000000AIXAA2&title=host+name++issue+while+installing+Denodo+7.0).
Additionally, if you still need help and if you are a user with valid Support account, you may open a support case at the Denodo Support Site and the support team will help you.
Hope this helps!