Hi,
My question here would be, did this always happen or has it started happening recently? If so, when and can you identify any changes that have taken place?
If it always happened then we could look at how the machine was packaged - did you use Customization Wizard, what settings were used and how did you deploy? For example did you deploy a serialised package, did you lock down online features?
https://www.adobe.com/devnet-docs/acrobatetk/tools/Wizard/index.html?zoom_highlight=customization
If it started happening recently then you should check that your serial number is not due to expire soon. https://helpx.adobe.com/enterprise/kb/volume-license-expiration-check.html
For help with this I recommend reaching out to the support team via your Admin Console.
Other factors that can prompt this can include installing other CC apps and signing in, or doing so on the Adobe website. As you say Adobe ID is forbidden this might not be likely, but worth checking.
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