Why are some domain users unable to connect to network drives?

Question

Windows

Good afternoon. Some users in the domain give such an error. Thanks everyone for the replies

Answer 1

1. How is a network drive initially connected to a user?
2. What is the OS of users who have an error?
3. What is the OS on the machine on which the "ball"?
4. Then such an error occurs?... It's just that the end user's OS for some reason tries to connect an already connected sphere with a different disk name (letter).
5. Does the error occur on the same PCs or different ones?