User Vs Admin access mode

Hi, i would like that you say me what is the difference between admin mode and user mode.

I have activate “HTTP Basic Auth enabled”, i can enter in admin mode, but i can’t enter in user mode.
because I can not enter user mode??

Thanks for all.

I believe user mode is only allowed to access the control pages rather than admin pages e.g.

http://<IP-ADDRESS>/control/relay.html