Qam wrong?

@FORUM TEAM

Not that you'll take any notice of me ....

Viper needs to know when the remedial works will be instituted to improve fibre capacity and reliability in his area.  That will clear his and his mother's SNR issues and provide full upstream capacity which is currently constrained by the reduced QAM levels.

If I've got anything wrong, don't feel inhibited to correct me.

I still say get WHICH involved.

Yeah - like a technician can fix IP address hopping!

It shouldn't bounce at all.  Mine's been solid for at least 3½ years.  I'm not sure of the region hopping bit; it could be that the IP address pools associated with your area have been increased or taken from somewhere else and the RIP entries haven't been updated.

That said, in theory they could configure things to draw IP addresses from anywhere in their wider area estate.

BUT, you've shown us that the hopping around has occurred during your active connections, and I can't explain that. 

I tell you, contact WHICH.  If they take up your case, they'll possibly survey more widely in Bristol S and, if they discover that what you report is widespread, they'll take it up with VM and publish whatever they say.  WHICH usually gets results.

However, "results" in terms of your contract would be a refund, plus possibly a commitment to place your area into their FTTP plan.  But WHICH canl publicly stick it to VM.

Addressing the DS power range:  The tech has put an equaliser onto the cable rather than an attenuator.  This (which you can Google)reduces power on the lower frequencies and increases power to the higher frequencies.  I find this completely pointless because the "slope" and "tilt" should all be set up at the amplifier serving the home. (All can be Googled).  

Then there was this nonsense from VM that you posted:

"Thanks for coming back to me Viper-t, your connection has issues with the absence of any upstream channels and you only have 1 downstream channel. You would usually have 24 downstream channels and 5 upstream channels on your connection but you only have 1 channel across both at the moment. That is the reason why, I suggested that a technician was needed, I wouldn't offer you the visit, if it wasn't necessary to resolve the issues that you're having."

You've got 31 DS channels.  Shows how little they care and bother.

Upstream is right on the edge, Viper - as I'm sure you know.  It's taking 50+ dBmv power for the CMTS to be able to read at 16QAM.  Right on the edge.  

With regard to the BQM graphs, they may be doing area work at night that they can't be bothered to tell you about.

The SYNC etc failures at boot time are normal.  At that time, nothing is in sync and the modem can't make sense of the stream of data that is nevertheless hitting it.

What did your research reveal?  Your upstream stats might be useful to see.  I'd be looking for higher frequencies, although they may not have been allocated to your segment.  This message suggests to me that they are working on your area to improve the upstream by adding more channels (up to 85MHz) and so relieving  contention and improving speed.  If the upstream is not in a state of grace when rebooting (as in they're in the process of adding channels), then, according to my understanding, the modem reacts with this error.   It should go away.

The FT won't know what's causing it!

Hi zach, She tells me they do not use apps and it happens on mutiple channels, we have already answered all this and 2 engineers have been already who havent fixed anything, one of which confirmed bad snr after getting off the phone with networks, though that has since disappeared and has been denied (luckily i record all encounters). They just want there tv to stop freezing, as you can see there are big problems with all the data I'm sending, I really don't know what vm want from me you have all the data the engineers haven't fixed it. So some resolution needs to happen moving forward, why does getting any problem fixed with vm take so so long? It's never ending, just give people the service you sell then there is no problem its 2023.

This does not look like a flat power spectrum, there is nearly 4db of tilt on the downstream (3.6), also the last 5 days of bqm shows terrible latency and packet loss, which is ALL the time (everyday) as previous pictures. Last night again picture froze while recording her programme, correctables are now hidden on hub5. Now this is a fault and needs to be fixed if not we will take it higher as we are not here to keep sending data to Virgin Media my parents are customers and I do not work for vm although this last year seems like I do. You will be held accountable. The problem you sent engineers for is not fixed so what is going to be done please?.