Hello,
Thank you for posting in our TechNet forum.
According to your description, we did not work through the similar problem. Logon information for domain accounts can be cached locally so that, if a domain controller cannot be contacted on subsequent logons, a user can still log on.
It is suggested that we could change our cached credentials policy to save more accounts. The value of this policy setting indicates the number of users whose logon information the server caches locally. If the value is 10, the server caches logon information for 10 users. When an eleventh user logs on to the device, the server overwrites the oldest cached logon session.
For more information, we could refer to:
https://learn.microsoft.com/en-us/windows/security/threat-protection/security-policy-settings/interactive-logon-number-of-previous-logons-to-cache-in-case-domain-controller-is-not-available
For any question, please feel free to contact us.
Best regards,
Hannah Xiong