Why are the downloads no longer working on Netflix?

Normally, I did not have a problem watching a sequence offline, but it has stopped working recently. I download an episode and when I start it but in the wireless, I can't look at them offline and I get the error message: Network error. If I start the episode without WLAN, I have no problems.

As a Netflix customer you have support, make a ticket via the help, is usually answered in a few minutes. At night, it is only in English.