Grab in ubuntu saves cookies, but in Windows 8.1 it doesn't?

Question

ubuntu

Good day!
The problem is this. I create a parser that logs into the site under an account. I work in Linux
The code looks like this:

Astro=Grab(log_file='Forum.html')
Astro.setup(reuse_cookies=True)
Astro.go(URL_login)#Переход на страницу регистрации
Astro.doc.set_input('user', Login)#Вводим имя пользователя
Astro.doc.set_input('passwrd', Password)#Вводим пароль
Astro.doc.set_input('cookielength', Cook_length)#Выставляем время сессии
Astro.doc.submit()#Нажатие кнопки "Регистрация"

In Ubuntu, when I look at the log file, I see that it is logged in under the account and everything is fine, but on Windows it doesn’t work - it doesn’t log in under the account or it works under the guest (Because of this, some partitions are not visible).
What could be the problem?
Even forcing cookies does not help.