[mythtv-users] HDHR prob with new wallwarts

Daryl McDonald darylangela at gmail.com
Fri Dec 13 14:51:00 UTC 2019

On Fri, Dec 13, 2019 at 6:14 AM Stephen Worthington <
stephen_agent at jsw.gen.nz> wrote:

> On Thu, 12 Dec 2019 16:31:02 -0500, you wrote:
> >On Thu, Dec 12, 2019 at 1:45 PM Allen Edwards <allen.p.edwards at gmail.com>
> >wrote:
> >
> >>
> >>
> >> On Thu, Dec 12, 2019, 10:29 AM Daryl McDonald <darylangela at gmail.com>
> >> wrote:
> >>
> >>>
> >>>
> >>> On Sat, Dec 7, 2019, 11:36 AM Allen Edwards <allen.p.edwards at gmail.com
> >
> >>> wrote:
> >>>
> >>>> I have no idea if this will be helpful but I had several issues
> getting
> >>>> my HDHR tuners to work. I provide these in case they might be useful.
> >>>>
> >>>> Myth address is and is static. I set it as reserved on
> the
> >>>> router. I also set the HDHR addresses as reserved.
> >>>>
> >>>> I start the tuners from rc.local. Old school but works.
> >>>> Here is the code. I believe this was from the vendors website.
> >>>> hdhomerun_config 10137DC1 set /ir/target "
> no_clear"
> >>>> If you need to allow more time to go by, you can add a delay before
> this
> >>>> command.
> >>>>
> >>> This part is outside my capabilities, probably would need more time if
> I
> >>> get the mobo to play nice with ACPI.
> >>>
> >>>>
> >>>> I had a power supply issue as well. The module that I bought with the
> >>>> HDHR did not put out enough current so I got ones rated for more
> current.
> >>>>
> >>>> I also had random failures. The computer would lose contact with the
> >>>> turners every few weeks. I traced it to a linux problem as the tuners
> were
> >>>> still visible from a Windows computer on the same network. That
> >>>> troubleshooting tip was provided by Silicon Dust.
> >>>>
> >>>> Here is the solution.
> >>>>
> >>>> dad at NewMyth:~$ more /etc/network/interfaces
> >>>> # interfaces(5) file used by ifup(8) and ifdown(8)
> >>>> auto lo
> >>>> iface lo inet loopback
> >>>> auto enp2s0
> >>>> iface enp2s0 inet static
> >>>>     address
> >>>>     netmask
> >>>>     gateway
> >>>>     broadcast
> >>>>     dns-nameservers
> >>>>
> >>>> Hope this helps.
> >>>>
> >>>> Allen
> >>>>
> >>>
> >>> I've set my FE/BE reserved to .210 and the HDHRs to .211, and .212, no
> >>> change to gateway and netmask, beyond this I need help.
> >>
> >> What you did is not enough. I did that from day 1 and had the problem.
> >> Perhaps you can ask a specific question based on the fix I posted.
> >>
> >>>
> >>> OK Allen I'm all in, this is my interfaces file now:
> > $ cat /etc/network/interfaces
> ># interfaces(5) file used by ifup(8) and ifdown(8)
> >auto lo
> >iface lo inet loopback
> >auto enp2s0
> >iface enp2s0 inet static
> >    address
> >    netmask
> >    gateway
> >    broadcast
> >    dns-nameservers
> >My only question is, where did you get the dns-nameservers values from? Do
> >I need to edit these?
> You would normally want to use the nameservers that your router should
> be getting from your ISP.  Your router may be able to tell you what
> they are.  Using Google's public nameservers as above should work for
> most things, but there can be some subtle problems (and benefits). For
> example, if your ISP runs local CDN servers (say Akamai servers), then
> anything you would normally have got from the local CDN servers will
> now be received from some global server somewhere much further away if
> you use Google DNS.  And you may be unable to access ISP services that
> are provided only to your ISP's customers from this PC.
> If you can find the correct ISP nameserver addresses from your router
> of maybe from a web page on your ISP's help pages, or by calling their
> helpdesk, then you can put them here.  ISP nameserver addresses
> normally do not change, but it can happen if they have to reorganise
> their IP addresses (especially if someone takes them over), and if
> that happens, then the static IPs that you put here will need to be
> changed also.  It is unlikely that your ISP will inform you if they
> change the addresses, as your router will normally pick up the new
> ones automatically.  If you use Google's nameservers, then those
> addresses are extremely unlikely to change.  And if they ever do, it
> will be big news on the Internet.  But you are giving Google
> information about what DNS addresses you are using.
> I think it may be possible to do partial DHCP, where you use a static
> IP address as above, but get things like the nameserver addresses
> using DHCP.  I have never done that using the interfaces file, but it
> is probably possible using some scripting.  Likely way beyond your
> capabilities.
> Also, using /etc/network/interfaces on a system that is using
> NetworkManager as yours is, there can be lots of complications.  I
> found I had to disable NetworkManager to get some things to work, and
> that may have included the "dns-nameservers" options.  It is a very
> long time ago that I did this, so my recollection is cloudy.  So
> overall I would recommend not doing static IP addresses this way
> without removing NetworkManager.  It gets too complicated.
> Instead, I would recommend that you use the NetworkManager GUI to set
> a "Manual" IP address.  "Manual" is NetworkManager's name for
> "Static".  You can then set the DNS options on the same screen to
> "Automatic" and that will get the DNS server addresses using DHCP, but
> have a static IP address.  The best of both worlds, unless it was a
> NetworkManager bug that was causing Allen's problems.
> Click on the NetworkManager icon, usually at the top of the screen,
> often on the right somewhere.  Mine looks like a little white box with
> a line dropping down to two more little white boxes below it.  Click
> on the cogwheel icon to open the settings for the Ethernet card, then
> on the "IPv4" tab.  Select "IPv4 Method" "Manual" and fill in the
> "Address" field with the static IP address you want.  The "Netmask"
> field should normally be set to "" and the "Gateway" to
> the IPv4 address of your router.  Leave the "DNS" and "Routes" options
> set to "Automatic".  Click "Apply".
> _________________________________________

I understand what you are saying Stephen, but I have a couple questions. If
I go the manual  method, would I first have to revert my
"/etc/network/interfaces" file to original state? (I did get successful
News and NFL recordings on HDHR last night) Secondly, I've employed a fix,
recommended by this site "
https://datawookie.netlify.com/blog/2018/10/dns-on-ubuntu-18.04/"  to
insure that nameserver settings required for my VPN survive a reboot. I
assume this should be taken into account when using your's or Allen's fix,
I just checked and the change to /etc/network/interfaces (Allen's fix) has
not harmed my VPN usage.
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