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Missing tuners - HTPC running Windows Media Center w/ HDHomerun Prime

post #1 of 9
Thread Starter 
Hello,

I have issues with Windows 7 Media Center not finding the other 2 tuners on my Silicondust HDHomerun Prime. It will say no tuners available even though only one of the three tuners is being used. When I check the Silicondust config, it finds all 3 tuners. I suspect Windows loses the other tuners and then never searches for them again. Most of the time one tuner is available. It is seldom that all of the tuners are not found.

I don't like rerunning the setup in Media Center because then I have to rerun the auto channel selector which takes forever.

I have the HDHomerun directly connected to the PC. It is running a CableCard from Time Warner Cable. I also disabled the ethernet card being allowed to be set to sleep mode.

Typically, I reset Windows and the HDHomerun to fix the issue. The problem is I don't notice this until I'm trying to record multiple shows. This causes me to miss those recordings.

Has any experienced this as well? Are there any fixes known? Maybe something that has media center ping the HDHomerun?

This has also made me consider checking MythTV. Are there any issues running a CableCard with MythTV? I thought I read that "premium" channels (anything encrypted from the cable company) would not work on MythTV. Not sure if this is true.

Thanks for the help!
post #2 of 9
Have you checked for this issue on SiliconDust's website?

What f/w version are you on wth the HDHR Prime?

I have mine connected to a switch and then a router on my network. Have you tried doing it through your network?

Did you run Digital Cable Advisor?

You shouldn't have to run the channel search in WMC because the channel mapping is handled in the CableCARD I believe.

Do you have a tuning adapter in your system for SDV?

If you've had all three tuners available before I assume you have an M-card otherwise maybe the cable co gave you an S-card (multi versus single tuner).

Have you verified that your card is properly paired with your subscription?

Any content that is marked copy once will not work using mythTV or on anything other than WMC at the present time. It should be working though.
post #3 of 9
Thread Starter 
Quote:
Originally Posted by Sammy2 View Post

Have you checked for this issue on SiliconDust's website?
What f/w version are you on wth the HDHR Prime?
I have mine connected to a switch and then a router on my network. Have you tried doing it through your network?
Did you run Digital Cable Advisor?
You shouldn't have to run the channel search in WMC because the channel mapping is handled in the CableCARD I believe.
Do you have a tuning adapter in your system for SDV?
If you've had all three tuners available before I assume you have an M-card otherwise maybe the cable co gave you an S-card (multi versus single tuner).
Have you verified that your card is properly paired with your subscription?
Any content that is marked copy once will not work using mythTV or on anything other than WMC at the present time. It should be working though.

I have checked on the Silicondust website. It is hard to tell whether people are having the same issue
I have the most up to date firmware on the HDHR prime (20120405 - I believe)
It would cause more issues going through the router since I do not have a gigabit switch
I already ran the digital cable advisor (it is a requirement, the tuners work sometimes).
I realize the channel search is done by installing the CableCard, but the autoselect removes all of the non subscribed channels (ie. HBO, Starz, ESPN gameplan, etc.)
I have a tuning adapter. But this issue happens on basic channels as well which do not use the tuning adapter.
Yes, it is a M-card. I have used multi-tuners before. The problem is sometimes WMC no longer detects all of the tuners.
The card will work on one tuner so I don't see any issue with the subscription.

I have a new issue coming up now. While watching Live TV on a basic channel (one that doesn't use the tuning adapter), it says no tuner available for the request. I have no idea why these keep on dropping off. It seems to reset when I run the setup for the SD HDHR prime and restart WMC. This happened multiple times yesterday.
post #4 of 9
Just because a channel doesn't "need" a tuning adapter, often when a TA is present, it still requires communications with the the TA to tune the channel as it "controls" the channel map. If mine goes down (usually with a flashing front light), I can't tune anything.

As to your original problem, I would probably ask this over on the SD forum. The fact that one tuner is still working probably makes this harder. You seem to indicate that the computer goes to sleep since you mention you have set the ethernet port set to not go to sleep. How does it perform if the computer never goes to sleep? It may be, as you surmised, that when waking up, it doesn't detect the tuners and "permanently" skips them. Occasionally when things are brought back from sleep, and even when starting from a reboot or power on, some things aren't ready as quickly as others and it may be that during this time it checks for the first tuner, doesn't find it, checks for the second, doesn't find it , then finally when it checks the 3rd tuner, the connection is available and it works. Some routers are just fine without the switch, its just been found out that some do touch the "local" traffic and can cause problems so I would still try it with the router (provided pc is wired to router, and if it is not, that may be part of the problem, especially if you are bridging these connections) . Last I heard their latest beta had an issue and until that is cleared up, I wouldn't update but the beta prior to that worked real well for most that were losing tuners. SD often "recommends" away mode over sleep but for some away mode ends up using more power than just leaving the computer on.

Do you have a dhcp server (with an address reservation for the prime to always get the same address)... the 169.254.x.x addresses of apipa are sometimes flaky but that wouldn't really explain losing only 1 or 2 tuners, though if there is an established connection it may be just not allowing new connections. If my TA goes out, it appears to control all chanels, not just those used by sdv
post #5 of 9
Thread Starter 
I don't have the HDHR prime connected to the router so the DHCP would not be in the loop. I have set everything to not go to sleep (ethernet and power savings). The newest issues with the tuner "going away" while using it is very concerning.
post #6 of 9
I had issues getting my HDHomerun Prime tuners recognized by WMC until I tried the new beta firmware from Silicon Dust. You can find it in their forums under the beta section. Obviously use at your own risk but I haven't had any issues in the few days since.
post #7 of 9
I should add that my issue was an all or nothing discovery issue vs your intermittent tuner dropouts so may not be related at all. But if I were you I'd still be tempted to move to a newer beta firmware just to see if it helps.
post #8 of 9
If you go to beta, use the 20121226Beta1. I'm having trouble with the newest beta.
post #9 of 9
Thread Starter 
I have removed the option for the background channel scan in the Silicondust config. This seems to remove much of the problems I have had. I have been out of town quite a bit over the holidays so I can not verify that this is the solution. I have checked the history on recordings and never few came up as not recorded. All of the not recorded items I found showed tv signal not found which I blame on Time Warner.

I have a thread on the Silicondust forum:
http://www.silicondust.com/forum/viewtopic.php?t=13986&highlight=
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