mva.microsoft.com gives 403 Forbidden for second link, first link downloaded fine

[jakubsuchybio]

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Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2016.10.26. If it's not read this FAQ entry and update. Issues with outdated version will be rejected.

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If the purpose of this issue is a bug report, site support request or you are not completely sure provide the full verbose output as follows:

Add -v flag to your command line you run youtube-dl with, copy the whole output and insert it here. It should look similar to one below (replace it with your log inserted between triple ```):

PS C:\Users\Jakub\Downloads\Programs\youtube-dl> ./youtube-dl.exe -v --ignore-errors -o "%(autonumber)s-%(title)s.%(ext)s" https://mva.microsoft.com/en-US/training-courses/advanced-net-threading-part-1-thread-fundamentals-16656?l=zAsojditC_6606218965 https://mva.microsoft.com/en-US/training-courses/advanced-net-threading-part-2-computebound-async-operations-16658?l=fG7K1fitC_2206218965
[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['-v', '--ignore-errors', '-o', '%(autonumber)s-%(title)s.%(ext)s', 'https://mva.microsoft.com/en-US/training-courses/advanced-net-threading-part-1-thread-fundamentals-16656?l=zAsojditC_6606218965', 'https://mva.microsoft.com/en-US/training-courses/advanced-net-threading-part-2-computebound-async-operations-16658?l=fG7K1fitC_2206218965']
[debug] Encodings: locale cp1250, fs mbcs, out cp852, pref cp1250
[debug] youtube-dl version 2016.10.26
[debug] Python version 3.4.4 - Windows-10-10.0.14393
[debug] exe versions: ffmpeg N-71608-ga924b83
[debug] Proxy map: {}
[mva] zAsojditC_6606218965: Downloading course base URL
[mva] zAsojditC_6606218965: Downloading video settings XML
[debug] Invoking downloader on 'https://progressivemlx-a.akamaihd.net:443/asset-b3ba83c0-1ba3-44a0-b6a6-34ac736eb1bd/22118-328801-yghnxrf0.mrd_H264_3400kbps_AAC_und_ch2_96kbps.mp4?sv=2012-02-12&sr=c&si=e9afe7c7-0e94-406c-ba2f-4edf9a3bb286&sig=iFKtz67mNf8WbIeG5UdeVF90YZ%2FkweSPS2s8ISYyCfA%3D&st=2016-08-22T02%3A49%3A30Z&se=2019-05-19T02%3A49%3A30Z'
[download] 00001-Video - Advanced .NET Threading, Part 1 - Thread Fundamentals.mp4 has already been downloaded
[download] 100% of 1.75GiB
[mva] fG7K1fitC_2206218965: Downloading course base URL
[mva] fG7K1fitC_2206218965: Downloading video settings XML
[debug] Invoking downloader on 'https://progressivemlx-a.akamaihd.net:443/asset-3ab72c26-cff5-437b-8b71-e45378055b2a/22120-328804-jqhxdhv0.auh_H264_3400kbps_AAC_und_ch2_96kbps.mp4?sv=2012-02-12&sr=c&si=76af6f01-3708-43f2-b630-fb3363ee326a&sig=A6PBM%2BRX7NDDN%2Bg77HeRr20008XD1iirYMhy7CggMoU%3D&st=2016-08-22T02%3A56%3A15Z&se=2019-05-19T02%3A56%3A15Z'
ERROR: unable to download video data: HTTP Error 403: Forbidden
Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp9z7q18a_\build\youtube_dl\YoutubeDL.py", line 1699, in process_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp9z7q18a_\build\youtube_dl\YoutubeDL.py", line 1641, in dl
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp9z7q18a_\build\youtube_dl\downloader\common.py", line 353, in download
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp9z7q18a_\build\youtube_dl\downloader\http.py", line 61, in real_download
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp9z7q18a_\build\youtube_dl\YoutubeDL.py", line 2001, in urlopen
  File "C:\Python\Python34\lib\urllib\request.py", line 470, in open
  File "C:\Python\Python34\lib\urllib\request.py", line 580, in http_response
  File "C:\Python\Python34\lib\urllib\request.py", line 508, in error
  File "C:\Python\Python34\lib\urllib\request.py", line 442, in _call_chain
  File "C:\Python\Python34\lib\urllib\request.py", line 588, in http_error_default
urllib.error.HTTPError: HTTP Error 403: Forbidden

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Description of your issue, suggested solution and other information

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I tried to download whole series from https://mva.microsoft.com about Advanced .NET Threading. It has 5 separate lessons.
In repro command I used only first 2 lessons, because they are enough for the repro.
First one downloaded correctly, but from the second one through to fifth one I got 403 Forbidden.

I would expect that when one link from the same site works that others would work too. That is why I am writing this bug report.