Laravel 5.2 sessions stop working (stop persisting) when I move the project from one PC to another

Question

When I move my Laravel 5.2 Project from one PC to another, sessions stop working. I have completely the same PHP installation and php.ini (the version doesn’t matter, I’ve checked it). And I run php artisan serve to serve my pages.

It’s obvious that the problem lays in the environment. But where exactly? The only noticeable difference is Windows’s version. I have the problem on Windows 10, and everything is ok on the Windows 7. Everything should work on both.

The bellow is a piece of code for reproducing the error. The route returns ‘value’ on every request. But it should be ‘another value’ since the second one. And it makes me mad.

//Route::group(['middleware' => ['web']], function () {
    Route::get('/try', function (Request $request) {
        if ($request->session()->has('key')) {
            $request->session()->put('key', 'another value');
        } else {
            $request->session()->put('key', 'value');
        }

        return $request->session()->all();
    });
//});

I have a fresh installed Laravel 5.2 (5.2.29) with default parameters. I’ve checked all the parameters, and, as to me, they are fine:

config\session.php

'lifetime' => 120,
'expire_on_close' => false,

.env

SESSION_DRIVER=file

php.ini

session.gc_maxlifetime = 1440
session.cookie_lifetime = 0

Sessions are being written in \storage\framework\sessions alright, however for each request.