ERROR: unable to download video data: <urlopen error [Errno 101] Network is unreachable>

[montanaflynn]

Before submitting an issue make sure you have:

• I've verified and I assure that I'm running youtube-dl 2017.05.29
• At least skimmed through README and most notably FAQ and BUGS sections
• 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:

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 ```):

$ youtube-dl -v --print-traffic "https://www.youtube.com/watch?v=DdIUuUY0L9c"
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'--print-traffic', u'https://www.youtube.com/watch?v=DdIUuUY0L9c']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2017.05.29
[debug] Python version 2.7.12 - Linux-4.4.35+-x86_64-with-Ubuntu-14.04-trusty
[debug] exe versions: ffmpeg 3.3.1-static, ffprobe 3.3.1-static
[debug] Proxy map: {}
[youtube] DdIUuUY0L9c: Downloading webpage
send: u'GET /watch?v=DdIUuUY0L9c&gl=US&hl=en&has_verified=1&bpctr=9999999999 HTTP/1.1\r\nAccept-Language: en-us,en;q=0.5\r\nAccept-Encoding: gzip, deflate\r\nConnection: close\r\nAccept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\nUser-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20150101 Firefox/47.0 (Chrome)\r\nAccept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\nHost: www.youtube.com\r\nCookie: PREF=f1=50000000&hl=en\r\n\r\n'
reply: 'HTTP/1.1 200 OK\r\n'
header: X-Frame-Options: SAMEORIGIN
header: P3P: CP="This is not a P3P policy! See http://support.google.com/accounts/answer/151657?hl=en for more info."
header: Expires: Tue, 27 Apr 1971 19:44:06 EST
header: Content-Type: text/html; charset=utf-8
header: Cache-Control: no-cache
header: X-XSS-Protection: 1; mode=block; report=https://www.google.com/appserve/security-bugs/log/youtube
header: Strict-Transport-Security: max-age=31536000
header: Content-Encoding: gzip
header: X-Content-Type-Options: nosniff
header: Date: Fri, 02 Jun 2017 18:40:36 GMT
header: Server: YouTubeFrontEnd
header: Set-Cookie: YSC=meJ2DAv1Blw; path=/; domain=.youtube.com; httponly
header: Set-Cookie: VISITOR_INFO1_LIVE=YSPh9eM8Sog; path=/; domain=.youtube.com; expires=Thu, 01-Feb-2018 06:33:36 GMT; httponly
header: Set-Cookie: s_gl=1d69aac621b2f9c0a25dade722d6e24bcwIAAABVUw==; path=/; domain=.youtube.com
header: Connection: close
header: Transfer-Encoding: chunked
[youtube] DdIUuUY0L9c: Downloading video info webpage
send: u'GET /get_video_info?el=info&ps=default&video_id=DdIUuUY0L9c&hl=en&sts=17318&gl=US&eurl= HTTP/1.1\r\nAccept-Language: en-us,en;q=0.5\r\nAccept-Encoding: gzip, deflate\r\nConnection: close\r\nAccept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\nUser-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20150101 Firefox/47.0 (Chrome)\r\nAccept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\nHost: www.youtube.com\r\nCookie: YSC=meJ2DAv1Blw; VISITOR_INFO1_LIVE=YSPh9eM8Sog; PREF=f1=50000000&hl=en; s_gl=1d69aac621b2f9c0a25dade722d6e24bcwIAAABVUw==\r\n\r\n'
reply: 'HTTP/1.1 200 OK\r\n'
header: Cache-Control: no-store
header: Content-Type: application/x-www-form-urlencoded
header: X-XSS-Protection: 1; mode=block; report=https://www.google.com/appserve/security-bugs/log/youtube
header: Expires: Tue, 27 Apr 1971 19:44:06 EST
header: Content-Encoding: gzip
header: X-Content-Type-Options: nosniff
header: P3P: CP="This is not a P3P policy! See http://support.google.com/accounts/answer/151657?hl=en for more info."
header: X-Frame-Options: SAMEORIGIN
header: Strict-Transport-Security: max-age=31536000
header: Date: Fri, 02 Jun 2017 18:40:37 GMT
header: Server: YouTubeFrontEnd
header: Set-Cookie: s_gl=1d69aac621b2f9c0a25dade722d6e24bcwIAAABVUw==; path=/; domain=.youtube.com
header: Connection: close
header: Transfer-Encoding: chunked
[youtube] DdIUuUY0L9c: Extracting video information
[youtube] DdIUuUY0L9c: Downloading MPD manifest
send: u'GET /api/manifest/dash/ms/au/mt/1496428761/as/fmp4_audio_clear%2Cfmp4_sd_hd_clear/mv/u/id/0dd214b946342fd7/sparams/as%2Cei%2Chfr%2Cid%2Cip%2Cipbits%2Citag%2Cmm%2Cmn%2Cms%2Cmv%2Cpl%2Cplayback_host%2Crequiressl%2Csource%2Cexpire/requiressl/yes/pl/20/source/youtube/ei/JbExWZevBMeOuAKN24-oBw/ip/35.188.93.89/ipbits/0/signature/07DEC6CD2FEB4A2799CDC8C3C879B084DFBB74F0.11111890F94D40C602A93AABC5D454209937B41A/hfr/1/key/yt6/mn/sn-vgqs7nez/mm/31/playback_host/r5---sn-vgqs7nez.googlevideo.com/expire/1496450437/itag/0 HTTP/1.1\r\nAccept-Language: en-us,en;q=0.5\r\nAccept-Encoding: gzip, deflate\r\nConnection: close\r\nAccept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\nUser-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20150101 Firefox/47.0 (Chrome)\r\nAccept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\nHost: manifest.googlevideo.com\r\n\r\n'
reply: 'HTTP/1.1 200 OK\r\n'
header: Content-Type: video/vnd.mpeg.dash.mpd
header: Date: Fri, 02 Jun 2017 18:40:37 GMT
header: Pragma: no-cache
header: Expires: Fri, 01 Jan 1990 00:00:00 GMT
header: Cache-Control: no-cache, must-revalidate
header: Content-Encoding: gzip
header: Server: HTTP server (unknown)
header: X-XSS-Protection: 1; mode=block
header: X-Frame-Options: SAMEORIGIN
header: Connection: close
header: Transfer-Encoding: chunked
[debug] Invoking downloader on u'https://r5---sn-vgqs7nez.googlevideo.com/videoplayback?id=0dd214b946342fd7&itag=133&source=youtube&requiressl=yes&ms=au&mv=u&pl=20&ei=JbExWZevBMeOuAKN24-oBw&mn=sn-vgqs7nez&mm=31&ratebypass=yes&mime=video/mp4&gir=yes&clen=1484497&lmt=1387353010324072&dur=48.415&mt=1496428761&signature=7D27F70FFE5CC048F01321AFA36569714E047AE3.232B16EB25B34BFDFF249359ECADF3BA20F17D75&key=dg_yt0&ip=35.188.93.89&ipbits=0&expire=1496450437&sparams=ip,ipbits,expire,id,itag,source,requiressl,ms,mv,pl,ei,mn,mm,ratebypass,mime,gir,clen,lmt,dur'
ERROR: unable to download video data: <urlopen error [Errno 101] Network is unreachable>
Traceback (most recent call last):
  File "/usr/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1797, in process_info
    partial_success = dl(fname, new_info)
  File "/usr/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1745, in dl
    return fd.download(name, info)
  File "/usr/bin/youtube-dl/youtube_dl/downloader/common.py", line 360, in download
    return self.real_download(filename, info_dict)
  File "/usr/bin/youtube-dl/youtube_dl/downloader/http.py", line 61, in real_download
    data = self.ydl.urlopen(request)
  File "/usr/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 2106, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "/usr/lib/python2.7/urllib2.py", line 429, in open
    response = self._open(req, data)
  File "/usr/lib/python2.7/urllib2.py", line 447, in _open
    '_open', req)
  File "/usr/lib/python2.7/urllib2.py", line 407, in _call_chain
    result = func(*args)
  File "/usr/bin/youtube-dl/youtube_dl/utils.py", line 1082, in https_open
    req, **kwargs)
  File "/usr/lib/python2.7/urllib2.py", line 1198, in do_open
    raise URLError(err)
URLError: <urlopen error [Errno 101] Network is unreachable>

Description of your issue, suggested solution and other information

In the last few hours our servers have been unable to download videos from youtube using youtube-dl. Restarting the server works a for a little while and then the requests stop working again.

[dstftw]

The reason is clearly explained in the error message.

[montanaflynn]

Is youtube known to rate-limit or blacklist servers that make too many requests?

[dstftw]

Yes, but it's not necessarily the case. Most likely an intermittent connectivity issue to some particular hosts namely r5---sn-vgqs7nez.googlevideo.com.