Issue
You may encounter an error "The server is not operational" when attempting to run the K2 Setup Manager after changing to a different domain on the server:
Error Code

Resolution
To bypass the domain user validation, make a backup and then edit the Product.config file found in [Install Directory]K2Setup, and set the domainusercheck key to False as below:
<setting key="domainusercheck" value="false" />
Additional Information
Related Links
