Thank you for the reply. On Prem and we have other Redhat 7 running plastic clients without an issue. Once we went to Redhat 8 we see see this error. On the server we run this command line: --> cm mkwk 123 123 --repository=${repoName}@xxxxxxx:8087 --> Error: The ADWorkingMode users configuration is not supported on this platform. I do not know our licensing details but we have no restrictions on any other linux or windows boxes doing the exact same call. We configure it with our client credentials. I am trying a few more things. Thank you