Hello @Zen_tech123 ,
PFB answer to your queries:
• Why only 11 mobile devices are showing as Azure AD registered?
This is because of the two reasons:
- You have Office 365 MDM/Basic Mobility and Security enabled, and 2 users would enrolled 3 devices to it via company portal app (Microsoft MEM broker application available in app store).
- Rest of the devices would have been registered via Authenticator application.
• How to have rest of the mobile devices registered in Azure AD?
This could be done by the following steps:
- Install the Authenticator app and Add an account to the it.
- Add your work or school account and Sign in with your credentials
- Turn on phone sign-in
• How windows devices are getting registered/joined to Azure AD?
There could be possible following actions done by admin/user on the device:
- The devices would have been registered as steps mentioned in https://support.microsoft.com/en-us/account-billing/register-your-personal-device-on-your-work-or-school-network-8803dd61-a613-45e3-ae6c-bd1ab25bf8a8
- The AAD connect would have synced the device object to Azure AD.
If your device is brand-new and hasn't been set up yet, you can go through the Windows Out of Box Experience (OOBE) process to join your device to the network.
- On the Sign in with Microsoft screen, type your work or school email address followed by password.
- To make sure you're joined (new device), Open Settings, and then select Account, Access work or school, and make sure you see text that says something like, Connected to <your_organization> Azure AD.
Please do let me know if you have any further queries.
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