Why I can't read rtmp stream?

Did everything according to the guide with Habra get the error... Checked the rtsp stream on VLC player, everything works fine. Framed another rtsp stream (taken from the Internet), all's good again, and the target doesn't want rabotaet(
What could be the problem?
$ rtmpdump -r "rtmp://127.0.0.1:1935/cam1/stream" -v
RTMPDump v2.4
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
WARNING: You haven't specified an output file (-o filename), using stdout
Connecting ...
INFO: Connected...
Starting Live Stream
ERROR: RTMP_ReadPacket, failed to read RTMP packet header
-0.001 kB / 0.00 sec
Download may be incomplete (downloaded about 0.00%), try resuming


Logs:
ffmpeg version N-80026-g936751b Copyright (c) 2000-2016 the FFmpeg developers
 built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
 configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab
 libavutil 55. 24.100 / 55. 24.100
 libavcodec 57. 42.100 / 57. 42.100
 libavformat 57. 36.100 / 57. 36.100
 libavdevice 57. 0.101 / 57. 0.101
 libavfilter 6. 45.100 / 6. 45.100
 libavresample 3. 0. 0 / 3. 0. 0
 4 libswscale. 1.100 / 4. 1.100
 libswresample 2. 0.101 / 2. 0.101
 libpostproc 54. 0.100 / 54. 0.100
[rtsp @ 0x3cc1800] UDP timeout, retrying with TCP
[rtsp @ 0x3cc1800] method PAUSE failed: 455 Method Not Valid in This State
[rtsp @ 0x3cc1800] Could not find codec parameters for stream 0 (Video: h264, none): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, rtsp, from 'rtsp://login:pass@ip:port/cam/realmonitor?channel=2&subtype=0':
Metadata:
 title : RTSP Session/2.0
 Duration: N/A, bitrate: N/A
 Stream #0:0: Video: h264, none, 90k tbr, 90k tbn
Output #0, flv, to 'rtmp://localhost:1935/camera1/stream':
Output file #0 does not contain any stream
July 8th 19 at 15:37
0 answer

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