RTMP_Connect0, failed to connect socket. 10060 (Unknown error)

[bmk_cbrxx]

Had another thread with this same question, but it seems to have disappeared.

My problem is that I have two computers on the same network, both Windows 7 64 bit, running same version of flash and latest version of rtmpdump. Works on one computer (laptop) but not on the other (desktop).

Here's the output, using an example URL I found on this forum.

Working example:

C:\Users\Brian\Downloads\Utilities\RTMPDump>echo %DATE% %TIME%
12/11/2012 10:43:37.39

C:\Users\Brian\Downloads\Utilities\RTMPDump>cd v*

C:\Users\Brian\Downloads\Utilities\RTMPDump\v2.4-49-g6ed7d74>rtmpdump -r "rtmp://188.122.91.29/app" -a "app" -f "WIN 11,4,402,287" -W "http://188.122.91.7/player-licensed.swf" -p "http://www.fcast.tv/embed.php?live=colorstvlive1&vw=600&vh=430" -y "color" -o "color.flv"
RTMPDump v2.4-49-g6ed7d74
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
Connecting ...
INFO: Connected...
Starting download at: 0.000 kB
INFO: Metadata:
INFO:   author
INFO:   copyright
INFO:   description
INFO:   keywords
INFO:   rating
INFO:   title
INFO:   presetname            Custom
INFO:   creationdate          Sun Nov 11 09:31:55 2012
INFO:   videodevice           XSplitBroadcaster
INFO:   framerate             25.00
INFO:   width                 512.00
INFO:   height                288.00
INFO:   videocodecid          avc1
INFO:   avclevel              21.00
INFO:   avcprofile            100.00
INFO:   videodatarate         390.63
INFO:   videokeyframe_frequency0.12
INFO:   audiodevice           VHAudioCustom
INFO:   audiosamplerate       44100.00
INFO:   audiochannels         2.00
INFO:   audioinputvolume      100.00
INFO:   audiocodecid          mp4a
INFO:   audiodatarate         93.75
INFO:   bufferSize            600k
INFO:   maxBitrate            500k
INFO:   xsplitBroadcasterVersion1.3.0.47
INFO:   xsplitCoreVersion     1.1.1209.0601 Version 1.1
INFO:   xsplitGameSourceVersion1.1.1.8
INFO:   xsplitMediaLibVersion 2.0.0.143
522.827 kB / 9.50 sec
Caught signal: 2, cleaning up, just a second...
541.161 kB / 9.58 sec
Download may be incomplete (downloaded about 0.00%), try resuming

And here's the non-working example:

Y:\Temp\XBMC-Portable\RTMPDump\v2.4-49-g6ed7d74>echo %DATE% %TIME%
12/11/2012 10:49:31.85

Y:\Temp\XBMC-Portable\RTMPDump\v2.4-49-g6ed7d74>rtmpdump -z -V -r "rtmp://188.122.91.29/app" -a "app" -f "WIN 11,4,402,287" -W "http://188.122.91.7/player-licensed.swf" -p "http://www.fcast.tv/embed.php?live=colorstvlive1&vw=600&vh=430" -y "color" -o "color.flv"
RTMPDump v2.4-49-g6ed7d74
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
DEBUG: Parsing...
DEBUG: Parsed protocol: 0
DEBUG: Parsed host    : 188.122.91.29
DEBUG: Parsed app     : app
DEBUG: Protocol : RTMP
DEBUG: Hostname : 188.122.91.29
DEBUG: Port     : 1935
DEBUG: Playpath : color
DEBUG: tcUrl    : rtmp://188.122.91.29:1935/app
DEBUG: swfUrl   : http://188.122.91.7/player-licensed.swf
DEBUG: pageUrl  : http://www.fcast.tv/embed.php?live=colorstvlive1&vw=600&vh=430
DEBUG: app      : app
DEBUG: flashVer : WIN 11,4,402,287
DEBUG: live     : no
DEBUG: timeout  : 30 sec
DEBUG: SWFSHA256:
DEBUG: 80 11 2c c4 b9 6d 80 29 1f 29 f6 11 32 91 3d 60
DEBUG: c8 06 29 61 ed eb fb 13 f4 3b 8d f1 65 67 a4 2d
DEBUG: SWFSize  : 178639
DEBUG: Setting buffer time to: 36000000ms
Connecting ...
ERROR: RTMP_Connect0, failed to connect socket. 10060 (Unknown error)
DEBUG: Closing connection.

What is causing the RTMP_Connect0 error message? I've even tried running in "Safe Mode" to minimize the number of programs that could be causing problems, but I get the exact same error. I've also tried forwarding ports on the router. I'm really running out of ideas.