Solution
Non-Concurrent License
One license is assigned to a single Windows login user account (user-based) or a single computer (computer-based). These licenses can only be used by the assigned user or computer. A single license cannot be used simultaneously on multiple PCs or user accounts.
Managed-Concurrent License
You can assign one license to multiple Windows login user accounts (user-based) or multiple computers (computer-based). However, each license can only be used by the assigned users or computers, and it cannot be used on multiple PCs or user accounts at the same time.
You can also create specific user or computer groups and assign multiple licenses to those groups. The number of users or computers that can use the software simultaneously is equal to the number of licenses assigned.
Unmanaged-Concurrent License
Any user or computer that can connect to the license server can use a license, as long as sufficient licenses are available.