Prevent Users from getting same Sesstion ID

[joginder89]

Your Environment

• OS and Version: Ubuntu 16.04
• PHP Version: 7.0
• Sentinel Version: ^2.0
• Laravel: 5.4.21

There are 2 users on same IP. Both users login and receive same session id like HponiRbO4VTZlfbyOSHOt7RnGmlBVhlMkUd9VDmS
Both users try to logout and login again, then again get same session id. I am using nginx php-fpm cache but has skipped for /admin routes.

I do not know is it nginx php-fpm cache problem or Sentinel problem or Laravel Problem or PHP problem or anything else.
How can I solve it or debug it ?

How the sesstion id is created for user when any user signin ?

I am using Sentinel::authenticate($request->only(['email', 'password']), true) for login user.