How to solve problems with authorization (session)?

Question

PHP

there are a couple of sites on the same server, when authorizing, the admin, as it were, authorizes by going to the admin panel, but when he tries to go to other sections, he is thrown back as if he is not authorized. Same on the other site. I was told that the problem is in the sessions. How can it be solved? What tools are needed? I want to decide without resorting to hosting

Answer 1

You know, I've seen this before on hostings.
The code is correct and works just like yours.
While the support does not pull does not work.
Then they reconfigure the session mechanism and voila everything starts working.
Of course, it’s not a fact that you have a problem with the hoster, but still.
Why not ask?