All podcast episodes from http://ueberklang.net/feed/ueberklang_podcast.xml fail.
Other feeds work fine.

I guess this is due to the Überklang-Podcast using Port 8000:
All mp3 urls are like "http://listening.at:8000/ueberklang/ueber060708.mp3", with only the last part (numbers, for the release date) changing.



Looking at the debug log from both rhythmbox and my test code, I can confirm this. Note that if I change the server and podcast XML to port 80 this test works fine.

When I add the podcast URL, rbox debug output clearly references 8080

(10:06:42) [0x2655ca0] [rb_uri_could_be_podcast] rb-file-helpers.c:596: 'http://localhost:8080/test_podcast_feed.xml' should be Podcast file, HACK
(10:06:42) [0x2655ca0] [rb_podcast_parse_load_feed] rb-podcast-parse.c:168: not checking mime type for http://localhost:8080/test_podcast_feed.xml (should be Podcast file)
(10:06:42) [0x2655ca0] [rb_podcast_parse_load_feed] rb-podcast-parse.c:241: Parsing http://localhost:8080/test_podcast_feed.xml as a Podcast succeeded

My test server confirms it receives a request for the XML

10:06:42.715 DEBUG test_rbox:190 - Podcast XML file requested
10:06:42.720 DEBUG test_rbox:223 - Host: localhost:8080

When I select the TRACK to be played rbox debug clearly is NO LONGER searching for port 80:

(10:10:04) [0xd296a0] [rb_entry_view_row_activated_cb] rb-entry-view.c:2139: row activated
(10:10:04) [0xd296a0] [rb_entry_view_row_activated_cb] rb-entry-view.c:2143: emitting entry activated
(10:10:04) [0xd296a0] [episode_entry_activated_cb] rb-podcast-add-dialog.c:633: search result podcast entry http://localhost/001.mp3 activated
(10:10:04) [0xd296a0] [load_uri_finish] rb-shell.c:2896: found an entry to play
(10:10:04) [0xd296a0] [rb_shell_player_stop] rb-shell-player.c:2124: stopping
(10:10:04) [0xd296a0] [rb_shell_player_set_playing_source_internal] rb-shell-player.c:2060: setting playing source to (nil)
(10:10:04) [0xd296a0] [rb_shell_player_sync_with_source] rb-shell-player.c:1887: playing source: (nil), active entry: (nil)
(10:10:04) [0xd296a0] [rb_shell_set_window_title] rb-shell.c:2397: clearing title
(10:10:04) [0xd296a0] [rb_shell_player_sync_buttons] rb-shell-player.c:1979: syncing with source 0x1028630
(10:10:04) [0xd296a0] [rb_shell_playing_source_changed_cb] rb-shell.c:2240: playing source changed
(10:10:04) [0xd296a0] [rb_shell_player_sync_with_source] rb-shell-player.c:1887: playing source: (nil), active entry: (nil)
(10:10:04) [0xd296a0] [rb_shell_set_window_title] rb-shell.c:2397: clearing title
(10:10:04) [0xd296a0] [rb_shell_player_sync_buttons] rb-shell-player.c:1979: syncing with source 0x1028630
(10:10:04) [0xd296a0] [rb_shell_player_set_playing_source_internal] rb-shell-player.c:2060: setting playing source to 0x1028630
(10:10:04) [0xd296a0] [rb_shell_player_sync_with_source] rb-shell-player.c:1887: playing source: 0x1028630, active entry: (nil)
(10:10:04) [0xd296a0] [rb_shell_set_window_title] rb-shell.c:2397: clearing title
(10:10:04) [0xd296a0] [rb_shell_player_sync_buttons] rb-shell-player.c:1979: syncing with source 0x1028630
(10:10:04) [0xd296a0] [rb_shell_playing_source_changed_cb] rb-shell.c:2240: playing source changed
(10:10:04) [0xd296a0] [rebuild_menu] rb-display-page-menu.c:211: building menu, 0 => 0 items
(10:10:04) [0xd296a0] [rb_player_gst_try_audio_sink] rb-player-gst-helper.c:101: audio sink autoaudiosink changed to READY state successfully
(10:10:04) [0xd296a0] [construct_pipeline] rb-player-gst.c:738: pipeline construction complete
(10:10:04) [0xd296a0] [impl_open] rb-player-gst.c:796: setting new uri to http://localhost/001.mp3
(10:10:04) [0xd296a0] [impl_play] rb-player-gst.c:868: not in transition, stopping current track to start the new one
(10:10:04) [0xd296a0] [start_state_change] rb-player-gst.c:381: changing state to READY
(10:10:04) [0xd296a0] [start_state_change] rb-player-gst.c:385: state change succeeded synchronously
(10:10:04) [0xd296a0] [state_change_finished] rb-player-gst.c:410: setting new playback URI http://localhost/001.mp3
(10:10:04) [0xd296a0] [start_state_change] rb-player-gst.c:381: changing state to PLAYING
(10:10:04) [0xd296a0] [rb_shell_player_set_playing_entry] rb-shell-player.c:885: Success!
(10:10:04) [0xd296a0] [bus_cb] rb-player-gst.c:537: playbin reached state READY
(10:10:04) [0xd296a0] [track_change_done] rb-player-gst.c:337: track change finished
(10:10:04) [0xd296a0] [playing_stream_cb] rb-shell-player.c:2475: new playing stream: http://localhost/001.mp3
(10:10:04) [0xd296a0] [rb_ext_db_request] rb-ext-db.c:684: starting metadata request
(10:10:04) [0xd296a0] [lookup_cb] rb-ext-db.c:536: lookup failed
(10:10:04) [0xd296a0] [rb_header_sync] rb-header.c:802: syncing with http://localhost/001.mp3
(10:10:04) [0xd296a0] [rb_shell_player_sync_with_source] rb-shell-player.c:1887: playing source: 0x1028630, active entry: 0x1f8ffe0
(10:10:04) [0xd296a0] [rb_shell_set_window_title] rb-shell.c:2420: setting title to "ubuntu@localhost - Claritas est etiam processus dynamicus, qui sequitur mutationem consuetudium lectorum. Mirum est notare quam littera gothica, quam nunc putamus parum claram, anteposuerit litterarum formas humanitatis per seacula quarta decima et quinta decima. Eodem modo typi, qui nunc nobis videntur pa"
(10:10:04) [0xd296a0] [rb_shell_player_sync_buttons] rb-shell-player.c:1979: syncing with source 0x1028630
(10:10:04) [0xd296a0] [rb_player_gst_find_element_with_property] rb-player-gst-helper.c:151: iterating bin looking for property volume
(10:10:04) [0xd296a0] [find_property_element] rb-player-gst-helper.c:117: found property "volume" on element autoaudiosink0-actual-sink-pulse
(10:10:04) [0xd296a0] [bus_cb] rb-player-gst.c:496: got error from stream: Cannot connect to destination (localhost) (gstsouphttpsrc.c(960): gst_soup_http_src_finished_cb (): /GstPlayBin:playbin0/GstURIDecodeBin:uridecodebin0/GstSoupHTTPSrc:source:
libsoup status code 4)
(10:10:04) [0xd296a0] [rb_shell_player_error] rb-shell-player.c:2404: playback error while playing: Cannot connect to destination (localhost)
(10:10:04) [0xd296a0] [error_cb] rb-shell-player.c:2514: exiting error hander
(10:10:04) [0xd296a0] [start_state_change] rb-player-gst.c:381: changing state to NULL
(10:10:04) [0xd296a0] [start_state_change] rb-player-gst.c:385: state change succeeded synchronously
(10:10:04) [0xd296a0] [rb_shell_player_handle_eos] rb-shell-player.c:508: handling eos for http://localhost/001.mp3
(10:10:04) [0xd296a0] [rb_shell_player_stop] rb-shell-player.c:2124: stopping
(10:10:04) [0xd296a0] [start_state_change] rb-player-gst.c:381: changing state to NULL
(10:10:04) [0xd296a0] [start_state_change] rb-player-gst.c:385: state change succeeded synchronously
(10:10:04) [0xd296a0] [rb_shell_player_set_playing_source_internal] rb-shell-player.c:2060: setting playing source to (nil)
(10:10:04) [0xd296a0] [rb_shell_player_set_playing_source_internal] rb-shell-player.c:2083: source is already playing, stopping it
(10:10:04) [0xd296a0] [rb_shell_player_sync_with_source] rb-shell-player.c:1887: playing source: (nil), active entry: (nil)
(10:10:04) [0xd296a0] [rb_shell_set_window_title] rb-shell.c:2397: clearing title
(10:10:04) [0xd296a0] [rb_shell_player_sync_buttons] rb-shell-player.c:1979: syncing with source 0x1028630
(10:10:04) [0xd296a0] [rb_shell_playing_source_changed_cb] rb-shell.c:2240: playing source changed
(10:10:04) [0xd296a0] [rebuild_menu] rb-display-page-menu.c:211: building menu, 0 => 0 items
(10:10:04) [0xd296a0] [rb_shell_player_sync_with_source] rb-shell-player.c:1887: playing source: (nil), active entry: (nil)
(10:10:04) [0xd296a0] [rb_shell_set_window_title] rb-shell.c:2397: clearing title
(10:10:04) [0xd296a0] [rb_header_sync] rb-header.c:912: not playing

See also:
https://bugs.launchpad.net/ubuntu/+source/rhythmbox/+bug/247123