can't receive IPN in the production with Django-paypal

[Has]

Hello, I have done all the testing on my local machine using ngro and it was great! But on the server, it can't receive any notification once the payment is done through the sandbox. Then, I tried the simulator. I can't receive notification if payment_date and notify_version are empty. But if they are not, I got the Invalid form. (payment_date: Enter a valid date/time.) even if I am using this format (23:04:06 Feb 02, 2015 PDT) as in the docmentation! If I will try the Local Development Testing, I will get ('Connection aborted.', TimeoutError(110, 'Connection timed out')). any I deai where is the error and how can I fix it?

[Tim Graham]

You'll get answers to questions like this on the django-users email list, <django-users@googlegroups.com> - the web interface is <https://groups.google.com/forum/#!forum/django-users>.

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