TV-Server loses channels (PMT Pid wasn't found on the PAT) (1 Viewer)

[DiePlage]

Hello folks,

sometimes (almost daily), my TV-Server (multi-seat) seems to "lose" channels. Channels that I watched some hours ago cannot be tuned to and after a long time of black screen MP states "Channel not found".
Right now I am using version 1.2.3 but the problem has been there at least since 1.2.2
TV-Server utilizes a Digital Devices Cine S2 + 2 Tuner + CI.

This is what the logs look like:

Server:

16-04-2012 13:26:18.885 pmtgrabber: got pmt 62 sid:77
16-04-2012 13:26:18.885 pmtgrabber: serviceid mismatch 77 != 6b
16-04-2012 13:26:18.963 pmtgrabber: set callback:6dffd8
16-04-2012 13:26:18.963 pmtgrabber: search pmt from PAT for sid:6b
16-04-2012 13:26:19.57 PMT Pid wasn't found on the PAT. Channel may have moved, try a new channel scan.
16-04-2012 13:26:19.150 PMT Pid wasn't found on the PAT. Channel may have moved, try a new channel scan.
16-04-2012 13:26:19.244 PMT Pid wasn't found on the PAT. Channel may have moved, try a new channel scan.
16-04-2012 13:26:19.337 PMT Pid wasn't found on the PAT. Channel may have moved, try a new channel scan.
16-04-2012 13:26:19.431 PMT Pid wasn't found on the PAT. Channel may have moved, try a new channel scan.
16-04-2012 13:26:19.525 PMT Pid wasn't found on the PAT. Channel may have moved, try a new channel scan.
16-04-2012 13:26:19.649 PMT Pid wasn't found on the PAT. Channel may have moved, try a new channel scan.
16-04-2012 13:26:19.743 PMT Pid wasn't found on the PAT. Channel may have moved, try a new channel scan.
16-04-2012 13:26:19.837 PMT Pid wasn't found on the PAT. Channel may have moved, try a new channel scan.
16-04-2012 13:26:19.930 PMT Pid wasn't found on the PAT. Channel may have moved, try a new channel scan.

Client:

16-04-2012 13:26:07.013 [1230]OnZapping 80
16-04-2012 13:26:07.013 [1230]Request new PAT = 3
16-04-2012 13:26:30.881 [c30]UpdateStreamDuration: Failed to get a SDP description from URL rtsp://192.168.9.160:554/stream2.0 cannot handle DESCRIBE response: RTSP/1.0 404 Stream Not Found
16-04-2012 13:26:35.886 [c30]UpdateStreamDuration: Failed to get a SDP description from URL rtsp://192.168.9.160:554/stream2.0 cannot handle DESCRIBE response: RTSP/1.0 404 Stream Not Found
16-04-2012 13:26:40.890 [c30]UpdateStreamDuration: Failed to get a SDP description from URL rtsp://192.168.9.160:554/stream2.0 cannot handle DESCRIBE response: RTSP/1.0 404 Stream Not Found
16-04-2012 13:26:45.893 [c30]UpdateStreamDuration: Failed to get a SDP description from URL rtsp://192.168.9.160:554/stream2.0 cannot handle DESCRIBE response: RTSP/1.0 404 Stream Not Found
16-04-2012 13:26:50.897 [c30]UpdateStreamDuration: Failed to get a SDP description from URL rtsp://192.168.9.160:554/stream2.0 cannot handle DESCRIBE response: RTSP/1.0 404 Stream Not Found
16-04-2012 13:26:55.900 [c30]UpdateStreamDuration: Failed to get a SDP description from URL rtsp://192.168.9.160:554/stream2.0 cannot handle DESCRIBE response: RTSP/1.0 404 Stream Not Found
16-04-2012 13:27:00.903 [c30]UpdateStreamDuration: Failed to get a SDP description from URL rtsp://192.168.9.160:554/stream2.0 cannot handle DESCRIBE response: RTSP/1.0 404 Stream Not Found
16-04-2012 13:27:05.908 [c30]UpdateStreamDuration: Failed to get a SDP description from URL rtsp://192.168.9.160:554/stream2.0 cannot handle DESCRIBE response: RTSP/1.0 404 Stream Not Found

A new channel scan on all 4 tuners fixes this reliably for the next hours.

A related problem seems to be that if a recording is scheduled on one of the "lost" channels, tvserver will try to tune the three free tuners, fail to tune the channel (that has already been lost) and eventually stop live tv to try the last tuner. This is quite an annoyance.
Again, another channelscan will do the trick.

I don't believe that channels really move this quickly and I am rather out of ideas right now.

Any help would be very welcome.

I'd be more than glad to provide you with any information that might help sort this out.

Cheers and thanks a lot!

DiePlage