Вот решении в /Foundation/Auth/RegistersUsers.php
public function register(Request $request)
{
$this->validator($request->all())->validate();
event(new Registered($user = $this->create($request->all())));
$this->guard()->login($user); // УДАЛИТЬ ЭТУ СТРОЧКУ!!!
return $this->registered($request, $user) ?: redirect($this->redirectPath());
}
