Hi,
Thank you for posting in Microsoft Q&A forum.
Where are you running the setup, on the server NEW or the server OLD?
Please run the setup on the server NEW to have a try, the options for Perform site maintenance or reset this site on the server OLD may be greyed out.
Also we can check the ConfigMgrSetupWizard.log and ConfigMgrSetup.log to see if there is any error.
Thanks for your time. Have a nice day!
Best regards,
Simon
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