No TV Signal

[cKuR6]

I've worked out all other kinks. Everything works, except random no tv signal failures to record.

The signal is there and fine. I can tune to the channel right after canceling out of the pop up error message. Re set it to record manually, and it records just fine.

I've checked signal levels. They are fine. My other thread will show numerous tests.

I've edited the registry, to up the dropped packet error rate. What used to be weak signal error, is now a no signal error. Other than that, there has been no change. How can I force WMC to ignore this error and continue recording? I'm starting to miss a lot of shows because of this.

edit: after typing this, wife reported HGTV not working. Service unavailable message, wdrm pairing red on that tuner only...... submitting support ticket eleventybillionandtwo.

[Crash2009]

Did they tell you to setup the tuner again?

[cKuR6]

I've not seen a reply yet. I did see when searching, that was the suggested repair action...... but I also saw where that did not resolved the issue.

This will not repair the No Tv Signal erroneous error, which is really what I need to address.

[JohnW248]

Need a little more information. Tuner type and number of tuners, cable system, cableCARD type (Cisco/Moto/NDS) SDV or not, set-up type networked tuners or all tuners assigned to one machine.

There can be a number of causes of this and having only one tuner show RED may mean it's paired to another machine OR it is defective. But more information would help. I assume you did a scan when the error hit for Ceton?

John

[cKuR6]

I didn't muddy up the thread, because I though the HTPC Specs link was the go to for system info around here, but I see now it doesn't show all that is needed.
No worries, I''ll be glad to add it and thanks for taking the time to look the issue over.
I'm less worried right this moment about the RED tuner, and more concerned with addressing the NO TV Signal failures to record. Either way:

Yes, I sent a capture to Ceton. I also checked the status through a couple of the tools found here. Temps, signals, everything showed fine, except for the Tuner 1 Red pairing listed on Ceton Web GUI. In the Ceton Diag tool, the channel itself showed clear. It has since returned.....
These issues though, are completely seperate from the NO TV Signal error.

Ceton InfiniTV6 Ethernet
TWC (i think moto.... but might be cisco. i'll update when i get home.)
SDV with Cable Co Supplied TA. TA checks out fine.

Setup:
Inbound Coax straight to 2way. 1 line feeds eth6 & one feeds TA. TA hooked via USB to Eth6.
Eth6 via Cat6 to switch, switch via cat5e to HTPC.
HTPC obtains live TV and records to one 2 TB WD-AVGP drive, then moves any file over 14 days to a secondary larger Seagate 3TB 7200 Drive.
WMC is the software utilized on the HTPC and for viewing on extenders.

I've work with crash to limit this system down to only what is required. The only program I've refused to dump is RecordedTVHD. I don't see how it could kill a tuner or cause a NO TV Signal error, since it only serves my Recorded TV. We use the native WMC interface for guide surfing, to live tv tuning, and recording setup. It's pretty clear when RTVHD is acting up.... this isn't it.

The Eth has been isolated from my MoCA network to address other issues. Amps have been removed. It's literally down to only what is required. Nothing else.

Recently updated Nic drivers again,and checked all others.

[cKuR6]

Response from CETON:
Serious demodulation errors

Today I see true bad signals. Two tuners show -48 range..... I manually retuned one in the CETON GUI and signal returned to normal. The third tuner remains at -48, regardless of channel.
I've had caps on order for awhile, hoping to see them this weekend. Other than that and a bad splitter, I don't know what else to do. TWC has been out here 5 times, and say everything checks out. The first trip, they did "fix" something at the box in the backyard.

I have a Cisco card.

[JohnW248]

A signal of -48 on a tuner is snow, its getting nothing. The fact you see it on two tuners note if those are the repeating offenders. Then power cycle the unit and see if you can manually tune each tuner and get a signal level. I think this is a different issue from the RED tuner. A RED or ORANGE tuner is pairing with Media Center DRM. Even with a RED or ORANGE tuner you should be able to tune a clear channel (we don't have any of those on TWC anymore here) but not anything that is encrypted, not protected content, just encrypted channels. Here OTA broadcast are now encrypted but not protected.

With the no signal problem there is either a RF issue on your system or maybe an intermittent issue with the tuner. For the next test disable your MoCA network to just eliminate any bleed through issue and see if there is any change. MoCA can cause issues but they generally are frequency specific and are filter removable. The RED issue might correct if you stop and then restart the ehRecvr service. If you do that you'll then also have to close and re-open Media Center and restart any extenders that are on when you do it. Is the one RED tuner always the same tuner? Are all the tuners going to one host or have you divided the tuners to different machines? For example if you were using a tuner on just one machine that was RED then the issue would most likely be that one machine. It might be possible that there might be an issue with the tuner as well.

But tackle the RF issue first and see if you can get all the tuners to tune and get a signal level within +/- 7dBmV range.

You might want to save some screen grabs or print them out to show to TWC and include time of day when it happens. If there is some intrusion in your area it might be when some piece of equipment turns on somewhere else--but that seems like a long shot.

[JohnW248]

Here is a chart that will open in a web browser and show you all your temps/pairing/signal levels etc. Copy the code and open it in notepad and then replace the marker IP address with the IP address of your ETH. Then save the file with a html instead of txt. Open a browser and then find and open the file. It'll find the tuner and put up all the information in one place that you can see. Then go to the Web Gui and tune each tuner to the same channel. Then refresh the chart and see if your signal levels are consistent (not identical) for all six tuners. If not then there might be an issue with one tuner.

Code: Select all

<html>
<body>
<div class='header'>Ceton InfiniTV Temperatures</div>
<table>
	<tr>
		<td width=100>Temp</td>
		<td width=100>WMDRM</td>
		<td width=100>Signal Level</td>
		<td width=100>SNR</td>
		<td width=100>Playback</td>
		<td width=100>Frequency</td>
		<td width=100>Modulation</td>
		<td width=200>Copy Protection</td>
		<td width=100>Channel</td>
	</tr>
</table>
<div id="variable_row">
	<div id="variable_label">Tuner #1:</div>
	<div id="variable_value">
		<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=0&s=diag&v=Temperature'>
		</iframe>
		<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=5&s=security&v=DrmPairingStatus'>
		</iframe>
		<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=0&s=diag&v=Signal_Level'>
		</iframe>
		<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=0&s=diag&v=Signal_SNR'>
		</iframe>
		<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=0&s=av&v=TransportState'>
		</iframe>
		<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=0&s=tuner&v=Frequency'>
		</iframe>
		<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=0&s=tuner&v=Modulation'>
		</iframe>
		<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:200px; height:75px;' src='http://192.168.200.1/get_var?i=0&s=diag&v=CopyProtectionStatus'>
		</iframe>
		<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=0&s=cas&v=VirtualChannelNumber'>
		</iframe>
	</div>
</div>
<div id="variable_label">Tuner #2:</div>
<div id="variable_value">
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=1&s=diag&v=Temperature'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=5&s=security&v=DrmPairingStatus'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=1&s=diag&v=Signal_Level'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=1&s=diag&v=Signal_SNR'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=1&s=av&v=TransportState'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=1&s=tuner&v=Frequency'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=1&s=tuner&v=Modulation'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:200px; height:75px;' src='http://192.168.200.1/get_var?i=1&s=diag&v=CopyProtectionStatus'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=1&s=cas&v=VirtualChannelNumber'>
	</iframe>
</div>
<div id="variable_label">Tuner #3:</div>
<div id="variable_value">
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=2&s=diag&v=Temperature'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=5&s=security&v=DrmPairingStatus'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=2&s=diag&v=Signal_Level'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=2&s=diag&v=Signal_SNR'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=2&s=av&v=TransportState'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=2&s=tuner&v=Frequency'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=2&s=tuner&v=Modulation'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:200px; height:75px;' src='http://192.168.200.1/get_var?i=2&s=diag&v=CopyProtectionStatus'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=2&s=cas&v=VirtualChannelNumber'>
	</iframe>
</div>
<div id="variable_label">Tuner #4:</div>
<div id="variable_value">
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=3&s=diag&v=Temperature'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=5&s=security&v=DrmPairingStatus'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=3&s=diag&v=Signal_Level'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=3&s=diag&v=Signal_SNR'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=3&s=av&v=TransportState'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=3&s=tuner&v=Frequency'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=3&s=tuner&v=Modulation'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:200px; height:75px;' src='http://192.168.200.1/get_var?i=3&s=diag&v=CopyProtectionStatus'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=3&s=cas&v=VirtualChannelNumber'>
	</iframe>
</div>
<div id="variable_label">Tuner #5:</div>
<div id="variable_value">
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=4&s=diag&v=Temperature'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=5&s=security&v=DrmPairingStatus'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=4&s=diag&v=Signal_Level'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=4&s=diag&v=Signal_SNR'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=4&s=av&v=TransportState'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=4&s=tuner&v=Frequency'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=4&s=tuner&v=Modulation'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:200px; height:75px;' src='http://192.168.200.1/get_var?i=4&s=diag&v=CopyProtectionStatus'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=4&s=cas&v=VirtualChannelNumber'>
	</iframe>
</div>
<div id="variable_label">Tuner #6:</div>
<div id="variable_value">
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=5&s=diag&v=Temperature'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=5&s=security&v=DrmPairingStatus'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=5&s=diag&v=Signal_Level'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=5&s=diag&v=Signal_SNR'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=5&s=av&v=TransportState'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=5&s=tuner&v=Frequency'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=5&s=tuner&v=Modulation'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:200px; height:75px;' src='http://192.168.200.1/get_var?i=5&s=diag&v=CopyProtectionStatus'>
	</iframe>
	<iframe frameborder='0' scrolling='no' style='padding: 0px; margin: 0px; width:100px; height:75px;' src='http://192.168.200.1/get_var?i=5&s=cas&v=VirtualChannelNumber'>
	</iframe>
</div>
</body>
</html>

[cKuR6]

Thanks guys. I'm already running that and capturing signal screens. This latest run is the first time signals have actually been bad. So we are dealing with three issues now.
I also have a batch file to netstop/start ehrecvr because the tuners were always disappearing when I was not home. So the wife can bring them back by just clicking the files.
Unfortunately, TWC here is not very good tech wise. I've shown them screens, and five trips, two with a sr tech suprvisor have not netted any change. In fact that techs first trip was the first time I ever saw signals as bad as -50's. his repair was so terrible I had to spend an hour undoing it all.

Original issue which will ultimately need worked around: no signal error, when signals are actually perfect. (-2 +2)

The red tuner issue ( the channel was actually clear, but has since returned and works fine) this was tuner 1, which now works fine again.

The terrible signal levels on tuners two and three. Which are also now fine again. (-2 +2)

As previously stated, MoCA is on completely seperated wiring. The only common potential is the line to the router, which is fed from the same tap that feeds TA and tuner. However, that cable has a Poe on it, so MoCA should be blocked.


Today:


Last Eve:

[Crash2009]

Strange, channel 996 "Playing" is normal. Stopped is screwed up. What happens if you use the ceton software to tune all the tuners to 996 ? Can we get another ScreenShot?

Try the same thing as above with Channel 1152

How many "Sources" does Channel 996 have, in your broadcast area? Is it possible that one of the sources is no good, or incompatible with your hardware? What I mean by that (for example) we have several sources for channel 7.....There is a 480P, 720P, and a couple 1080's. My Echo's wouldn't play 480 very well, so I deleted the source. I downloaded the channel descriptions from Comcast, and used GuideTool to deselect all but one source. Looking at my guide from within WMC or Echo I have 160 unique channels rather than 4 or 5 versions of the same channel (which add up to 6 or 700). I think the cable company does this so they can support a wide year-range of TV's (1950's models up to 2015's)

I defer to Johns advice though. He was working with tuners when I was just a twinkle in my father's eye.

[JohnW248]

Tuners 3 & 4 look like they might have a problem. Try a known working channel manually tuned on all six tuners. They should then all show copy protection information and signal level and stopped.

Next move the Ethernet connection for the tuner/ta from the router to a switch. If it's on the router there is the possibility of "snooping" going on which might explain the random tuner outage which can happen with intrusive dlna or other calls on the tuner.

while your version includes the cable card authorization and uptime, it doesn't have the DRM pairing that I've added. A lot of people of edited this over the past couple of years and I haven't paid much attention since I posted my version back then. I worked from someone else's more limited 4 tuner update.

I don't know what TWC is doing when they come out, but please ask them what they're doing and what the results are when they do it. But for more information tune every tuner to a CCI channel and not a clear channel and see if they all work.

[cKuR6]

crash, i'll have to look back into the source thing. I remember reading your post, but never did find the time to research further. Is it the program box listed on the InfiniTV device webpage I wonder? Some show 4 program sources, some show 3.

John, thanks for pointing out I did exactly what I hate my guys doing at work.... glancing at something and thinking it is what they have. Apologies. I've updated my code and also took the time to add in date and time to save me another copy paste each time I run this.



I notice on the ceton tool it is showing a new firmware that wasn't there last time I checked. I stopped at radio shack and picked up a lossless splitter. They did not have any terminators and mine are now showing 3/18-mid APR delivery...... I went around one time for good measure and checked all my coax connections (even though none of the other ones in the house touch the tv lines), all are tight and the MoCA network only has one port open.

[cKuR6]

^as usual.... everything looks perfect from what I know based on all my research on this in the last 6 mos. I think the only thing that makes sense so far is the hypothesis regarding some device in the area being turned on.

My temps seem to be high, considering I have the TA and the Tuner in my utility closet, which is a spot in my basement, not finished and not insulated, so it is currently very cold in there. In the winter it's warm in the media area from the heat, even with that register closed. In the summer it stays warm, due to the insulation and poor window choice by previous owners, unless we are cranking the a/c.

[Crash2009]

crash, i'll have to look back into the source thing. I remember reading your post, but never did find the time to research further.

Get yourself a copy of GuideTool, pay the 5 bucks to register. It's the easiest way that I have tried, to edit channels, and see sources. Use GuideTool to backup your existing before you start editing.

If you are not running any antique extenders with antique displays, you don't need the SD channels. Plus it cleans up the guide so you don't have any duplicates. You can edit channels from within WMC, but I find GuideTool faster and easier, plus you can export a backup.

I'm not sure this has any bearing on the subject of this post, but you never know. I like my stuff "Lean and Mean".

[Crash2009]

My temps seem to be high

48 is not bad, you can get cooler with a fan in the closet. Tuners don't start re-booting/overheating until up in the 60's

[cKuR6]

Yeah but considering its single digits here, imagine when it's 90's+. Ill prob do what I had always planned for my media cab and hook up an external fan controller, then run PC fans in the boxes with xbox and tuner.

I have guide tool. I've removed every sd channel, except the few we watch that are t in HD. I didn't really dig around in there, so I don't remember seeing sources, but ill look again tomorrow. I had to do everything earlier with my youngest constantly tugging on me, ready yet dad? It's fort building time!

[JohnW248]

Everything looks fine. Besides outside intrusion into the cable, make sure you move the tuner/ta off the router port and onto a switch. I think that will help with the random disconnects. Next time it happens you can do a Ceton scan and also send a couple of screen grabs showing everything working and when it doesn't. They do have contacts with the cable company and I think you'll get better results going through Buffalo New York (National CableCARD help desk)

[cKuR6]

Eth6 is on a switch.
TWC buff is good, but even when the see signal issues all they can do us send out a tech.
So if it continues, you think it's fair to say there is an issue with TWC lines?

The previous owners (10yr old house we bought in aug) dog dug up the cable coming from the box into the house last summer, and it was repaired. Maybe I need to investigate how it was repaired. Twc says everything at the box looked good and only claimed that the multiple tuners could be causing the issues. When I showed them similar screen shots, proving that doesn't degrade the signal, they pretty much threw up their hands.

On a good note, while digging through the lines in my closet, I see multiple cat5e dangling around without jacks. Now ill have to investigate where those go and maybe I can ditch moca in most places. Although the master bedroom is the only line that has "network issue" pop up, I'd still rather run gig connections.

[JohnW248]

Signal issues can be problematic. Start keeping a log of channel numbers and signal levels and time of day, day of week, etc. There may be some relationship to the "repair". Is the buried cable in a conduit? I just wonder if there is any leak that moisture could get in and then any connector that was used to repair might have developed an issue. Now those TWC techs are supposed to be able to find a cable problem by reflection like a nail through the cable, a bad connector, etc. Such things are funny in that they don't kill the signal like an air gap, but act like low pass or high pass or notch filters and can hit a specific frequency or vary like any old am radio tuner depending on what the cause is. So the more information you collect the better.

But your -48dBmV reading is basically no signal at that frequency, nothing to lock. If you lost 74.5 mH then you wouldn't get any Conditional Access stream and so forth.
I don't know what the issues might be in getting it done, but I'd suggest pulling the cable and replacing it from the box to the house. But that's going to depend on who you talk to and who is responsible for the cable and that repair and so forth.

[mdavej]

Could also be further upstream. I had a similar issue. Took me 3 months and 4 tech visits to convince the cable company to look upstream (neighbors were also having issues with the same frequencies). When they finally did, they replaced some equipment in the big box where the cable comes into my neighborhood, and my signal has been steady ever since.