[Kobewan]

You can check the signal levels of the tuning adapter by accessing the diagnostics menu through the TiVo, but this will only be possible if the TiVo is able to recognize the tuning adapter. Try these steps...
1) Disconnect the power and USB cable from the Tuning Adapter.
2) Wait 60 seconds.
3) Connect the power cable to the Tuning Adapter. Do not plug in the USB.
4) Allow the Tuning Adapter to boot up completely. Even if it can't lock a signal with your cable provider, it should eventually give up and the light should turn solid green. If it's still blinking after 10 minutes, that normally indicates a fault that can be determined by the number of blinks, followed by a short pause. (i.e. 8 blinks, pause, 8 blinks, pause, etc indicates the Tuning Adapter is in brick mode).
5) Only after the light turns solid green, reconnect the USB cable between the TiVo and tuning adapter.
6) After a few seconds you should get the notification from the TiVo that the tuning adapter has been connected.

If you're able to get it connected, follow the menu prompts to reach the Tuning Adapter Diagnostics menu.
Main Menu > Settings & Messages > Help > Account & System Info > Tuning Adapter > Tuning Adapter Diagnostics

From there you should be able to access both pages of the RF Statistics menu.

Well, the tuning adapter never gets recognized, it is at a constant state of initialization in the TiVo. This is both TiVos and both TAs. The TAs just blink constantly whether or not their USB is connected to the TiVo. And it is a constant blink, pauses. I'm thinking it's a signal issue. Anyway to test those levels in another TiVo menu other than tuning adapter?

 

[boydn1]

Have related issue with Spectrum and Cisco STA 1520 tuning adapter for Tivo Series 4 and Tivo Bolt.
WNJB/N channel 23/ 1223 is scrambled. This is local NJ PBS affiliate. The Series 4 (not Bolt) daily guide update doesn't update. When it connects automatically, several stations show "to be announced." I have to manually connect two or three times before there is an actual update and the guide is completed. Spectrum keeps messing with the Tivo. Very annoying. Similar to issue last December.

Your guide is strictly a TIVO issue, you can't blame Spectrum for that.

 

[Kobewan]

Well, things got worse today. Both TiVo’s lost all channels, not just SDV and every channel says either searching for a signal or the channel is not authorized. Happened while I was watching at Noon today and both TiVos had the issue without being touched. This is a new one. Called and Cox says everything is authorized and they aren’t sure what is wrong and are going to a send a truck Monday morning. I’ll probably have to FaceTime the tech while he checks the box outside. Weird thing is that the signal strength on the TiVo says 100% on one and 95% on another. They “re-paired” both Cablecars but still not authorized. The interesting thing is Now the Tuning Adapters are solid green! Sheesh! Anyway, it has to be the signal someone so hope they can fix it. Thank god for Netflix and Amazon Video.

 

[dlfl]

Well, things got worse today. Both TiVo's lost all channels, not just SDV and every channel says either searching for a signal or the channel is not authorized. Happened while I was watching at Noon today and both TiVos had the issue without being touched. This is a new one. Called and Cox says everything is authorized and they aren't sure what is wrong and are going to a send a truck Monday morning. I'll probably have to FaceTime the tech while he checks the box outside. Weird thing is that the signal strength on the TiVo says 100% on one and 95% on another. They "re-paired" both Cablecars but still not authorized. The interesting thing is Now the Tuning Adapters are solid green! Sheesh! Anyway, it has to be the signal someone so hope they can fix it. Thank god for Netflix and Amazon Video.

In an earlier post you said your TA's were blinking "And it is a constant blink, pauses. ". Is it a constant blinking or is it so-many-blinks then pause, then repeat? 8-blinks-pause cycles mean the TA is not authorized and this is a totally different thing than pairing the CableCARD's. If your CableCARD's are "not authorized" (where did you see this?) then of course no channels will tune. Both types of authorization require good communications on two low frequencies below the cable channel frequencies, called Out-of-Band (OOB) signals and named FDC and RDC. It's possible to have strong signals in the channel band (as evidenced by 95 or 100 in your TiVo signal strengths) but still have excessive attenuation somewhere along the cable path (either inside or outside your home) so that the OOB signals are too weak. If you are able to get the TiVo communicating with the TA, you can actually see signal levels for FDC and RDC. Otherwise it depends on the service tech being able to measure those specific frequencies. From what I've read on this forum, and my own experience, I don't think they typically can do that.

Now, even if the problem is NOT poor OOB signal levels, proper TA and CableCARD provisioning depends on settings made on your account at the cable head end. Errors of this type are by far the most common cause of problems like yours, based on thousands of war stories on this forum. Apparently very few cable co people really understand these issues which leads to some very frustrating situations.

 

[Kobewan]

Until yesterday, the TAs were constantly blinking, no pauses. Then when I lost all channels yesterday, the TAs went Solid green, but the TiVos still do not recognize them nor receive any channels at all now. The cable folks are no help, saying that both cablecards are propery paired. They just had my power cycle everything twice before scheduling a truck roll tomorrow. We’ll see. The not authorized message appears on every channel when I try to watch.

 

[ma91cs4d]

I power cycled the TA and in the diagnostic page it says "yes"

After you switch the splitters out to increase the signal,

1) Disconnect the power and USB cable from the Tuning Adapter.
2) Wait 60 seconds.
3) Connect the power cable to the Tuning Adapter. Do not plug in the USB.
4) Allow the Tuning Adapter to boot up completely (solid green light).
5) After the light turns solid green, reconnect the USB cable between the TiVo and tuning adapter.
6) After a few seconds you should get the notification from the TiVo that the tuning adapter has been connected.
7) Wait about 5 more minutes, then check the settings below and see if any differ from what I have listed.

Status Summary
Status: Ready

POST and Boot Results
UNcfg: Ready

Network and Tuning Status
RF Network
IP: 10.x.x.x <--- This should not be 0.0.0.0

Switched Digital Video
Authorized: Yes

Tuning Resolver
Authorized: Yes

 

[ma91cs4d]

Anyone think this may help?
https://www.amazon.com/Satellite-Amplifier-Splitter-Booster-Package/dp/B0792MVBB3/ref=sr_1_5?crid=1YKCVFKMCVGZC&dchild=1&keywords=cable+tv+drop+amplifier&qid=1587139485&sprefix=drop+cable+am,aps,200&sr=8-5

This will increase the signal to each of your outputs, however I've tested this specific amplifier and it does not work with MoCA. I would suggest the CommScope one from my previous post which is designed to work with MoCA and would replace your 4-way splitter. Or, you can add one of these between your drop and your 4-way splitter - ANTRONIX FRA1-1510 CABLE TV BOOSTER AMP Forward/Return Amplifier HD COAXIAL COAX | eBay

 

[kad7777]

*** MORE INFO ***
CoxInPHX in our Tivo Community wrote a post a few years ago that's very informative
Cisco Tuning Adapter Status Troubleshooting

I PM him and he gave me a little more info and wanted to share:

I said:

Near the bottom of your original post:

Cisco Tuning Adapter Status Troubleshooting

you have a list -

The most important items in the Tuning Adapter Diagnostics should all read:

What if ALL of item listed are not what they should be?
What would that mean? I know my signal is very low. Also, this is my third Tuning Adapter.
I just posted a week ago. Please check out my post and would love to get your expertise.
Thank You.
Cisco Tuning Adapter STA1520 issue, Spectrum cable

his response:

Since you have replaced the Tuning Adapter twice, I would call and verify with Spectrum the TA Serial# and the RF MAC Address.
Ask if the Ticket or Work Order for the TA swap is Closed. I've seen many times where the problem was simply an Open Ticket on the account.

Your FDC of -18 or -19 is way too low, but may not be the issue.
If you are using MoCA, disconnect that temporarily and use the TA RF pass-through to eliminate that splitter.

I would bypass at least one of your splitters, (preferably the main drop) with a coax barrel connector, to see if that increases your signal enough for the DAVIC to Connect.

It's also very possible some configuration change was made at the Cable Plant, which knocked all TAs off the Plant. This has happened to me before, It took many people complaining in the Cox Support Forums to get it fixed.

 

[ma91cs4d]

*** MORE INFO ***
CoxInPHX in our Tivo Community wrote a post a few years ago that's very informative
Cisco Tuning Adapter Status Troubleshooting

I PM him and he gave me a little more info and wanted to share:

I said:

Near the bottom of your original post:

Cisco Tuning Adapter Status Troubleshooting

you have a list -

The most important items in the Tuning Adapter Diagnostics should all read:

What if ALL of item listed are not what they should be?
What would that mean? I know my signal is very low. Also, this is my third Tuning Adapter.
I just posted a week ago. Please check out my post and would love to get your expertise.
Thank You.
Cisco Tuning Adapter STA1520 issue, Spectrum cable

his response:

Since you have replaced the Tuning Adapter twice, I would call and verify with Spectrum the TA Serial# and the RF MAC Address.
Ask if the Ticket or Work Order for the TA swap is Closed. I've seen many times where the problem was simply an Open Ticket on the account.

Your FDC of -18 or -19 is way too low, but may not be the issue.
If you are using MoCA, disconnect that temporarily and use the TA RF pass-through to eliminate that splitter.

I would bypass at least one of your splitters, (preferably the main drop) with a coax barrel connector, to see if that increases your signal enough for the DAVIC to Connect.

It's also very possible some configuration change was made at the Cable Plant, which knocked all TAs off the Plant. This has happened to me before, It took many people complaining in the Cox Support Forums to get it fixed.

He's correct and was a great source of information while I was working to troubleshoot my Tuning Adapter issue.

When you have a chance, test again with your 4-way splitter replaced by the 2-way. Post your signal levels and whether you're getting an RF IP Address a few minutes after the tuning adapter boots up. All of the other statuses (DAVIC, Status, Authorization, etc) will hinge on the Tuning Adapter getting that address.

 

[UCLABB]

After you switch the splitters out to increase the signal,

1) Disconnect the power and USB cable from the Tuning Adapter.
2) Wait 60 seconds.
3) Connect the power cable to the Tuning Adapter. Do not plug in the USB.
4) Allow the Tuning Adapter to boot up completely (solid green light).
5) After the light turns solid green, reconnect the USB cable between the TiVo and tuning adapter.
6) After a few seconds you should get the notification from the TiVo that the tuning adapter has been connected.
7) Wait about 5 more minutes, then check the settings below and see if any differ from what I have listed.

Status Summary
Status: Ready

POST and Boot Results
UNcfg: Ready

Network and Tuning Status
RF Network
IP: 10.x.x.x <--- This should not be 0.0.0.0

Switched Digital Video
Authorized: Yes

Tuning Resolver
Authorized: Yes

I would add one last step after all that and it worked for me yesterday. I rebooted the Bolt+ and voila. I've had my TA on a timer for a weekly reboot. Lately half the time it is messed up after the reboot- no SDV channels. Sometimes another reboot does it, but not always. I had gone years with nary a problem. I don't know if the headend software was changed or what. I have noticed that the TA reboot seems to be taking a lot more time than I remember.

 

[kad7777]

I would add one last step after all that and it worked for me yesterday. I rebooted the Bolt+ and voila. I've had my TA on a timer for a weekly reboot. Lately half the time it is messed up after the reboot- no SDV channels. Sometimes another reboot does it, but not always. I had gone years with nary a problem. I don't know if the headend software was changed or what. I have noticed that the TA reboot seems to be taking a lot more time than I remember.

I've tried that so many times my fingers are stumps. Hee-hee. I'm pretty confident this is a result of Spectrum changes or updating something at the "cable plant". Or, maybe my drop line got damaged. Any changes, I'll always update. Right now, TA not really working (just a few channels) and waiting for a COVID-19 slow down before I order a truck roll.

 

[kad7777]

**** MAJOR UPDATE ****

About a week ago I ordered an Antronix MRA4-8 Advanced Residential Amplifier:
https://www.amazon.com/gp/product/B00CYMQVG4/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1.

I installed it today (4/26/20), with a 12ft RG6 coax cable to supply power from AC adapter to amplifier.
I am now getting EVERY STATION I'm paying for - Spectrum Select package and the Digi Tier 1. All the suggestions and expert advice received for good/proper signal strength are all matched when checking tuning adapter signal levels via the Tivo Tuning Adapter Diagnostics pages.

Hoping the good luck continues.

Can't thank everyone enough for their input and expertise!!!!!

 

[davidhunternyc]

I just discovered this thread. What a epic battle this was! And guess what, I'm now in a similar situation. I live in NYC and Spectrum is my carrier. I use a Tivo Roamio Plus DVR. Last week I (stupidly) decided to upgrade my cable package to get more sports channels for a "cheaper" price from what I was paying before. Most of these channels are not showing up. I went back and forth between Tivo and Spectrum ad nauseam. I've had two Spectrum servicemen over to my apartment. I had my coaxial lines redone. I had my cable card changed out. I've trouble shooted to no end. No matter what they do I do not get the extra channels. Some Spectrum workers say that I need a tuning adapter. Other Spectrum workers say I do not. I now have another third scheduled appointment with Spectrum to install their tuning adapter. Do I need it? kad7777, you said that the one from Amazon worked for you. Do you think it will work for me? Also, do you know if Spectrum will charge me month-to-month for their own tuning adapter? Any advice will be helpful. Thank you.

 

[kad7777]

I just discovered this thread. What a epic battle this was! And guess what, I'm now in a similar situation. I live in NYC and Spectrum is my carrier. I use a Tivo Roamio Plus DVR. Last week I (stupidly) decided to upgrade my cable package to get more sports channels for a "cheaper" price from what I was paying before. Most of these channels are not showing up. I went back and forth between Tivo and Spectrum ad nauseam. I've had two Spectrum servicemen over to my apartment. I had my coaxial lines redone. I had my cable card changed out. I've trouble shooted to no end. No matter what they do I do not get the extra channels. Some Spectrum workers say that I need a tuning adapter. Other Spectrum workers say I do not. I now have another third scheduled appointment with Spectrum to install their tuning adapter. Do I need it? kad7777, you said that the one from Amazon worked for you. Do you think it will work for me? Also, do you know if Spectrum will charge me month-to-month for their own tuning adapter? Any advice will be helpful. Thank you.

Sorry. I didn't see your post until today (11/26/20). If the sports channels are in a "Tier" package then you most likely need a tuning adapter. In upstate NY they do not charge for an adapter. Not sure in the city. Also, make sure when you hook up the adapter you connect it correctly: Make sure the Roamio is booted and receiving normal channels. Then, connect the power to the Tuning Adapter. NOT THE USB CABLE THAT CONNECTS TO THE TIVO. Wait for the green light in the front of the adapter to turn solid green. When solid connect the USB from the TA to the Roamio. Your Tivo should pause in a second or two. Just click on continue. You should be good to go. Also, with a TA, be aware that you'll need to reboot the TA from time to time. You'll know when you're not receiving the proper channels, or you may have had an update from Spectrum or Tivo. When you reboot your TA, make sure you disconnect the USB from your Tivo. Then, when light on front of TA turns solid green connect the USB to your Roamio. The TA's are very touching and need a little TLC. They're old school and Spectrum doesn't really give you support for them. In actuality, they'd like to get rid of anyone using Tivo or a cable card. Now, if the TA didn't help you, you may need what I needed to boost your signal. Like what happened to me (re-read post if necessary). Hope that helps.

 

[Ambimom]

If you are still reading this, I discovered a solution that actually worked for me. First, you definitely need a tuning adapter. Second when you lose channels, resetting the tuning adapter locally does not work. Forget that. I finally got a technician who knew what was wrong. It's happened two more times and it's worked every time. It'll go like this.

!. You unplug the USB cable to your Tivo. 2. Unplug the power cable to the tuning adapter. Call your cable provider and ask them to refresh the tuning adapters on their end. 4. Plug the USB cable back into Tivo. 5. Plug the power back to the tuning adapter. In about 60 seconds, all your channels return. No fuss.

That's how it's gone for me twice already. Saves all kinds of frustration and needless service calls.

 

[UCLABB]

If you are still reading this, I discovered a solution that actually worked for me. First, you definitely need a tuning adapter. Second when you lose channels, resetting the tuning adapter locally does not work. Forget that. I finally got a technician who knew what was wrong. It's happened two more times and it's worked every time. It'll go like this.

!. You unplug the USB cable to your Tivo. 2. Unplug the power cable to the tuning adapter. Call your cable provider and ask them to refresh the tuning adapters on their end. 4. Plug the USB cable back into Tivo. 5. Plug the power back to the tuning adapter. In about 60 seconds, all your channels return. No fuss.

That's how it's gone for me twice already. Saves all kinds of frustration and needless service calls.

I'm not sure how how the headend can refresh your TA when it is not plugged into power. I do find that rebooting the TA with the USB unplugged works more consistently than with the USB plugged in.

 

[Ambimom]

Of course. Perhaps my explanation was not clear. You unplug your tuning adapter and disconnect tivo, then plug it all back in before you ask your cable provider to refresh the tuning adapter on their end.

This fix is only if rebooting your tuning adapter locally does not restore your channels, which has happened to me three or four times.

Before this, whenever rebooting the tuning adapter and the Tivo had no effect in restoring missing channels, I had a series of technicians sent to my home spend hours crawling on all fours, checking connections, changing cables, etc. trying to figure out what was wrong. Frustrating to them; frustrating to me. Finally, I happened upon a technician who knew what was wrong.