Hi Rakesh,
How are you managing your devices? What version of Windows client devices are?Is it affecting all the users or single user and a single device?
Kindly go through each steps and requirements and points in this page and see if you have missed or not configured any of the section listed - https://learn.microsoft.com/en-us/azure/active-directory/devices/device-join-plan
Even check the supported OS on the client side. Also try disabling and enabling the device so this will refresh the PRT on the device and check again after sometime.
Other way to test is whether the Password reset has worked Yes or No is via manually requesting user to use this link https://myapps.microsoft.com
Also check the device logs from the portal.
Hope this helps.
JS
==
Please Accept the answer if the information helped you. This will help us and others in the community as well.