[mythtv-users] HDHR losses network connectivity (was LiveTV issues (root caused to cable signals))

[Eric Smith]

On Tue, Sep 4, 2012 at 9:45 PM, Monkey Pet <monkeypet at gmail.com> wrote:
> After debugging my HDHR Prime recording instabilities, I finally found the
> bug behind all my hdhomerun prime woes. I am hoping this post will help the
> others.  The symptom is bad recordings with the error describe in this
> thread, jumpy recordings, glitchy recordings, LiveTV definately doesn't work
> at all.
>
> It is http://code.mythtv.org/trac/ticket/10414#comment:25 and looks like the
> HDHR network gets into some weird state and loses network connectivity.  The
> workaround is to continuously ping the HDHR.  With the pinging the HDHR
> recordings complete fine as reported in the bug.  The thought is that this
> is a HDHomeRun Prime issue.  I am running Fedora 17 with mythtv 0.26 (Master
> Head).  However, ubuntu 12.04 folks reported it as well.  This happens with
> a switch in between the HDHR and/or directly connect to the NIC on the
> backend server.
>
> [fa at mythtv ~]$ uname -a
> Linux mythtv 3.5.2-3.fc17.i686 #1 SMP Tue Aug 21 19:48:20 UTC 2012 i686 i686
> i386 GNU/Linux
>
> [@mythtv libhdhomerun]$ ./hdhomerun_config 1313E021 get /sys/version
> 20120405
> [@mythtv libhdhomerun]$ ./hdhomerun_config 1313E021 get /sys/features
> channelmap: us-cable us-hrc us-irc kr-cable
> modulation: qam256 qam64 oob1544 oob2048 oob3088
> auto-modulation: auto auto6c qam
> [@mythtv libhdhomerun]$ ./hdhomerun_config 1313E021 get /sys/hwmodel
> HDHR3-CC
> [@mythtv libhdhomerun]$ ./hdhomerun_config 1313E021 get /sys/model
> hdhomerun3_cablecard

Just wanted to say thanks.  I've been chasing this issue since I
upgraded to f17 a couple months ago and haven't had any luck.  I
posted about it a while ago "Missing chunks of recordings" but didn't
have enough data to do any real troubleshooting.  I'm watching your
silicondust ticket for a resolution but am hoping the ping trick makes
things stable for the time being.