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https://www.sysadmins.lv/retired-msft-blogs/xdot509/troubleshooting-autoenrollment.aspx#:~:text=The%20machine%20autoenrollment%20is%20triggered%20at%20System%20Startup,Microsoft%2C%20expanding%20Windows%2C%20and%20clicking%20on%20the%20CertificateServicesClient.
https://docs.microsoft.com/en-us/troubleshoot/windows-server/windows-security/approval-required-certificate-renewals-autoenrollment
Certificate autoenrollment runs every eight hours. When unsupported values of validity and renewal period are configured in a certificate template, the certificate renewal is skipped and the client triggers new enrollment requests instead of renewals, then prompting CA certificate manager approval.
https://social.technet.microsoft.com/Forums/en-US/50551f17-8004-4d18-85f6-b19cce4f064b/windows-server-2008-servers-autoenrolling-repeatedly-every-8-hours
By default, the group policy is applied at reboot for machines or logon for users and is refreshed every eight hours. The refresh interval can be configured using Group Policy. Seems like you are getting new certificate every time the GPO gets applied. If you run If you restart the server 10 minutes after getting new certificate.
https://www.sysadmins.lv/retired-msft-blogs/xdot509/troubleshooting-autoenrollment.aspx
Computer Autoenrollment is triggered by Log on and occurs every 8 hours. You can view the autoenrollment tasks, by opening the Task Scheduler, expanding Microsoft, expanding Windows, and clicking on the CertificateServicesClient. There is a SystemTask that is associated with Machine Enrollment and a UserTask associated with user enrollment. Manually Triggering …
https://azurecloudai.blog/2010/12/01/auto-enrollment-avoid-the-challenges-of-making-end-users-manage-their-certificates/
Auto-enrollment is triggered when a user logs on, when a machine is powered on, or every 8 hours when Group Policy is refreshed. It is possible to manually trigger Group policy update by running the command gpupdate /force on the client.
https://www.techtalkz.com/threads/autoenrollment-errors-rpc-server-is-unavailable.85013/
interval, and then every 8 hours (AutoEnrollment schedule?). Most information posts which I have found on this subject alert to three issues: network connectivity, folder permissions for the crypto keys, and the CERTSVC_DCOM_ACCESS group. I’ve verified the membership of this group
https://techcommunity.microsoft.com/t5/core-infrastructure-and-security/certificate-for-winrt-devices-and-non-domain-member-devices/ba-p/1129005
Another issues is that autoenrollment runs only upon user sign-in or run every 8 hours. After setting up your certificate and everything, you can you can use certutil -pulse (for computer context) or certutil -user -pulse (for user context) to manually trigger autoenrollment. You can check the status and history of the
https://docs.microsoft.com/en-us/mem/intune/configuration/device-profile-troubleshoot
Every 5 minutes for 15 minutes, then every 15 minutes for 2 hours, and then around every 8 hours Windows 8.1 At any time, users can open the Company Portal app, Settings > Sync to immediately check for policy or profile updates.
https://microsoft.public.windows.server.active-directory.narkive.com/t9wri5RG/event-id-13-error-every-8-hours
You may start from here, http://msdn.microsoft.com/library/default.asp?url=/library/en-us/xmlsdk/html/29ff74a2-249a-4ecf-8a2a-ff0ba572e4db.asp
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