Magento2 : Admin dashboard keep showing login form

Question

I have set staging database to local setup. Frontend is working good.

For backend after login dashboard url is shoiwng http:// xyz . com / admin/admin/dashboard/index/key/9fea02870e23e77980f350eb2b73889e0bdb04239781c66e533e065dcf19ed98/

with login form.

I have run all commands and not showing any error in log files. I have also try to create new admin user, new admin user is also not able to see dashboard page, same login form is shoiwng after login form submit.

Answer 1

What worked for me was to set max_session_size_admin

magento config:set system/security/max_session_size_admin 1024000
magento cache:clean config

Magento 2.4.5

Answer 2

Please refer to this link maybe its helpful for you Login redirect when trying to login to Commerce Admin

Moreover Check either your Magento Version is compatible with your php version.

Answer 3

I have faced the same issue in the local, while setting up Magento 2.4.4 and that's also in windows system. I have figured out the issue by this way.

Add extra code in the below file Path:- \vendor\magento\framework\View\Element\Template\File\Validator.php

    /**
     * Checks whether path related to the directory
     *
     * @param string $path
     * @param string|array $directories
     * @return bool
     */
    protected function isPathInDirectories($path, $directories)
    {
        if (!is_array($directories)) {
            $directories = (array)$directories;
        }
        $realPath = $this->fileDriver->getRealPath($path);
        //Start Extra Code
        $realPath = str_replace('\\', '/', $realPath);   
        //End Extra Code
        foreach ($directories as $directory) {
            if (0 === strpos($realPath, $directory)) {
                return true;
            }
        }
        return false;
    }

After adding this run deploy command and remove files from var and generated folder.

php bin/magento s:d:com

Answer 4

I experienced the same issue on magento 2.4.6. For other test purpose i setted web/cookie/cookie_domain to .example.com. Reverted to example.com it returns to work correctly.