While the PIN or biometric identification is a device supposed to be a device-specific function, it could be set on multiple devices if the organization’s policy allows it. Here’s an explanation of why a PIN is better than a password and its device-specific functionality. The PIN is not saved on any server and thus cannot be accessed outside the device, though as mentioned earlier, we could set up Windows Hello on multiple devices.
Your password was changed on a different device
If we are using Windows Hello for Business to configure the PIN or biometric identification of multiple devices, changing the account password on one device would not affect the PIN or biometric identification of other devices, since they use a key or certificate. However, if we are not using Windows Hello for Business, we would have to change the password on every associated device. In such a situation, we would get the following error:
Understanding the problem
Let us suppose that we set up a PIN on our primary device and created a password (or used an existing one). Upon changing the password on the same device, the PIN would work as usual since it was set up on the system itself so it can recognize the change in the password. Now the password is server-specific, not device-specific, thus it changes on all the associated systems. The PIN on the other systems are linked to that password, however, they cannot recognize the change since for those systems the change was made on the server. In such a situation, the PIN login would fail on those systems.
Changing PIN (or biometric) on non-primary systems
For the sake of the discussion, we are assuming that the primary system was the one on which the PIN was changed initially. Hope this helps you resolve the issue.
