Lynda.com not working

[horusra]

I use windows (64bit) and firefox.
I cleared all my cookies, then went on to log into lynda.com using organization login, everything works fine. Then I exported the cookies (netscape format, windows\DOS EOL format) and tried to download a course, but it only downloads the free videos (doesn't recognize membership).

the course I tried: http://www.lynda.com/Alias-tutorials/Alias-Essential-Training/173790-2.html

youtube-dl even mentions the fact that there are 72 videos, but then downloads the 16 free videos.

verbose output:

[debug] System config: []
[debug] User config: [u'--output', u'I:\\! TV\\Lynda\\%(playlist)s\\%(playlist_index)s_%(title)s.%(ext)s', u'--cookies', u'C:\\Program Files\\MPV\\cookies.txt', u'--no-mtime']
[debug] Command-line args: [u'--verbose', u'--cookies', u'C:\\Program Files\\MPV\\lynda.txt', u'--all-subs', u'-f=bestvideo+bestaudio/best', u'http://www.lynda.com/Alias-tutorials/Alias-Essential-Training/173790-2.html']
[debug] Encodings: locale cp1252, fs mbcs, out cp437, pref cp1252
[debug] youtube-dl version 2016.02.10
[debug] Python version 2.7.10 - Windows-8-6.2.9200
[debug] exe versions: none
[debug] Proxy map: {}
[lynda:course] 173790: Downloading course JSON
WARNING: 72 videos are only available for members (or paid members) and will not be downloaded. Use --username and --password options to provide lynda.com account credentials.
[download] Downloading playlist: Alias Essential Training
[lynda:course] playlist Alias Essential Training: Collected 16 video ids (downloading 16 of them)
[download] Downloading video 1 of 16
[lynda] 369208: Downloading video JSON
[lynda] 369208: Checking 1-540 video format URL
[lynda] 369208: Checking 1-720 video format URL
[lynda] 369208: Checking 1-360 video format URL
[lynda] 369208: Checking 0-540 video format URL
[lynda] 369208: Checking 0-720 video format URL
[lynda] 369208: Checking 0-360 video format URL
[lynda] 369208: Checking 2-540 video format URL
[lynda] 369208: Checking 2-720 video format URL
[lynda] 369208: Checking 2-360 video format URL
[info] Writing video subtitles to: I:\! TV\Lynda\Alias Essential Training\01_Welcome.en.srt
[debug] Invoking downloader on u'http://files2.lynda.com/secure/courses/173790/VBR_MP4h264_main_HD720/173790_00_01_WX30_welcome.mp4?c3.ri=5687886179413299478&hashval=1457935000_9284f5f1e4dbe579ea0433570e7e1126'

[horusra]