ERROR: Unable to download JSON metadata: <urlopen error [Errno -2] Name or service not known>

[Meriipu]

• I've verified and I assure that I'm running youtube-dl 2017.07.30.1
• At least skimmed through the [README](https://github.com/rg3/youtube-dl/blob/master
• Searched the bugtracker for similar issues including closed ones

What is the purpose of your issue?

• Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

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:

[debug] System config: []
[debug] User config: ['--buffer-size', '16K']
[debug] Custom config: []
[debug] Command-line args: ['-v']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2017.07.30.1-gentoo_no_offensive_sites
[debug] Python version 3.5.3 - Linux-4.12.4-gentoo-pix-x86_64-...
[debug] exe versions: ffmpeg N-86791-g9b93795890, ffprobe N-86791-g9b93795890, rtmpdump 2.4
[debug] Proxy map: {}
...
<end of log>

---

If the purpose of this issue is a site support request please provide all kinds of example URLs support for which should be included (replace following example URLs by yours):

• Single video: https://tv.nrk.no/program/MDDP12000717/youtube-generasjonen

---

Description of your issue, suggested solution and other information

Very similar error to Issue #10659 (though differing in at least "video data" vs "JSON metadata")
Used to work but does not anymore via base URL.
I was able to through Firefox debugger by using the url to master.m3u8 under XHR in the Network-tab.
Video in question should be available for all IP addresses globally as far as I know (i.e not region-restricted)

youtube-dl --verbose https://tv.nrk.no/program/MDDP12000717/youtube-generasjonen
[debug] System config: []
[debug] User config: ['--buffer-size', '16K']
[debug] Custom config: []
[debug] Command-line args: ['--verbose', 'https://tv.nrk.no/program/MDDP12000717/youtube-generasjonen']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2017.07.30.1-gentoo_no_offensive_sites
[debug] Python version 3.5.3 - Linux-4.12.4-gentoo-pix-x86_64-...
[debug] exe versions: ffmpeg N-86791-g9b93795890, ffprobe N-86791-g9b93795890, rtmpdump 2.4
[debug] Proxy map: {}
[debug] Using fake IP 84.212.165.126 (NO) as X-Forwarded-For.
[NRKTV] MDDP12000717: Downloading mediaelement JSON
ERROR: Unable to download JSON metadata: <urlopen error [Errno -2] Name or service not known> (caused by URLError(gaierror(-2, 'Name or service not known'),))
  File "/usr/lib64/python3.5/site-packages/youtube_dl/extractor/common.py", line 502, in _request_webpage
    return self._downloader.urlopen(url_or_request)
  File "/usr/lib64/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 2166, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "/usr/lib64/python3.5/urllib/request.py", line 466, in open
    response = self._open(req, data)
  File "/usr/lib64/python3.5/urllib/request.py", line 484, in _open
    '_open', req)
  File "/usr/lib64/python3.5/urllib/request.py", line 444, in _call_chain
    result = func(*args)
  File "/usr/lib64/python3.5/site-packages/youtube_dl/utils.py", line 930, in http_open
    req)
  File "/usr/lib64/python3.5/urllib/request.py", line 1256, in do_open
    raise URLError(err)

[Meriipu]

thanks