[mythtv-users] HD Home Run Prime HDHR3-CC keeps re-booting, can't access cable card - solved

Jay Foster jayf0ster at roadrunner.com
Wed Nov 9 00:15:22 UTC 2016


On 11/8/2016 3:56 PM, Mythtv - SIlicondust wrote:
> On Tue, Nov 8, 2016 at 3:17 PM, Gary Buhrmaster 
> <gary.buhrmaster at gmail.com <mailto:gary.buhrmaster at gmail.com>> wrote:
>
>     On Tue, Nov 8, 2016 at 10:38 PM, Mike's JdJ
>     <stepsisters at comcast.net <mailto:stepsisters at comcast.net>> wrote:
>     > .... This appears to have shown up from a DNS upgrade.
>
>     If one looks closely, one might happen to notice that
>     SD is now front-ended by cloudflare.... (which uses
>     DNS in a way that the really old firmware was vulnerable
>     to).
>
>     As I recall, SD had run into the bug some time ago
>     (and was why newer firmware already existed to
>     resolved it(*); it was even in the changelog for the
>     early 2015 firmware releases)), but had widely rolled
>     out their own load balancing and failover solutions
>     which only returned one IP address.  Cloudflare
>     does things differently.
>
>     btw, for the record, the latest firmware on SD's
>     download pages is now 20161107 (with a suffix 'b'
>     for the CableCARD firmware), but if you download
>     it from the web site (as you stated) you will get the
>     latest.
>
>
> Nick here from Silicondust...
>
> Confirming, we found and fixed a bug in the firmware a few years ago 
> relating to DNS handling.
> For HDHomeRun PRIME units it affects units running 20130117 or older 
> firmware.
> For HDHomeRun DUAL units it affects units running 20141124 or older 
> firmware.
>
> The easiest fix is to unplug the WAN port of your home router so the 
> old HDHomeRun firmware is happy, then upgrade it to the latest 
> firmware (20161107b for PRIME and 20161107 for DUAL).
> The direct firmware download links can be found on our website under 
> Downloads, Linux.
>
> We are beefing up our server infrastructure... we now use CloudFlare 
> for the first level. Behind that we have caching servers in four 
> locations for speed, redundancy, and backend failover selection. 
> Finally we have the backend servers, with most services being served 
> by redundant servers. Linux and scripted builds all the way through. I 
> had fun setting that up :-)
>
> Nick
>
>
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I'm curious.  Why would an HDHomeRun need to do DNS?  I have three 
HDHomeRun tuners connected to my backend on a dedicated network which 
has no DNS service at all and they work just fine.  The backend connects 
to the HDHomeRun, not the other way around.
Jay

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