We currently implementing a modern workplace solution with Windows 10 for a customer. We have Windows 10 user-based devices that are Azure AD joined and managed by Intune. Instead of logging on to the Windows 10 device with an Azure password we would prefer to use Windows Hello for business for device authentication (pincode + fingerprint). For the initial configuration of Windows Hello for Business we need an internet connection.
My question is, how often a internet connection is needed after the initial configuration to make sure Windows Hello for Business keeps working?
When I disconnect my internet connection I can still use Windows Hello for Business to logon to the Windows 10 device. Will this always work without an internet connection? Or do we need to connect to the internet once in while to make sure this will continue to work.
On the Microsoft documentation I found the following documentation about the sign-in process (https://docs.microsoft.com/en-us/azure/active-directory/authentication/concept-authentication-passwordless). I cannot find the answer here to my question. Can someone provide the answer and if possible provide a URL to documentation?
Thank you in advance!