#2002 - No such file or directory — The server is not responding (or the local server's socket is not correctly configured).

I’m having the same error and it pops randomly also. The above fix it didn’t worked for me. That line is commented and I have this instead:

/* Authentication type */
    $cfg['Servers'][$i]['auth_type'] = 'cookie';
    /* Server parameters */
    if (empty($dbserver)) $dbserver = '127.0.0.1';
    $cfg['Servers'][$i]['host'] = $dbserver;

    if (!empty($dbport) || $dbserver != '127.0.0.1') {
        $cfg['Servers'][$i]['connect_type'] = 'tcp';
        $cfg['Servers'][$i]['port'] = $dbport;
    }

A you can see i have replaced the localhost with the IP suggested but still that error pops up from time to time. Any suggestion?