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keasy
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Message 11 of 25
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Re: Upstream Modulation Issue - Potential Noise Issue

Thank you Paul,

How do we go forward? Well I require an engineer?

 

Thanks.

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Emily_G
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Message 12 of 25
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Re: Upstream Modulation Issue - Potential Noise Issue

Thanks for the post Keasy.

 

We can see some downstream power level errors so we've booked the next available engineer appointment for you using the forum information.

 

Please check the details of this and reschedule if needed on your online account.

 

Thanks, Emily.

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keasy
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Message 13 of 25
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Re: Upstream Modulation Issue - Potential Noise Issue

Thanks Emily.

 

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Emily_G
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Message 14 of 25
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Re: Upstream Modulation Issue - Potential Noise Issue

No problem, please do let us know how this goes. 

 

Thanks, Emily.

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keasy
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Message 15 of 25
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Re: Upstream Modulation Issue - Potential Noise Issue

Engineers removed the attenuator the last engineer had placed.

They also replaced the connection in the pit as it was slightly corroded. I live on a hill and it fills with water a lot. They are supposed to be waterproof/corrosion resistant but that's a big ask. I guess it will go again eventually but the engineers (guy had a trainee with him) were bang on and even left me with a spare length of coax I asked them for so I could move the hub away from the back of my TV altogether to cut down electrical noise/interference.

 

Thanks for arranging this Emily and Paul.

👍

 

Hang loose!

 

 

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keasy
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Message 16 of 25
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Re: Upstream Modulation Issue - Potential Noise Issue

Two upstreams are dropping to 32 QAM again
BQM looks fine though.

Why does the constant upstream modulation keep dropping from 64 to 32 ?

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jem101
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Message 17 of 25
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Re: Upstream Modulation Issue - Potential Noise Issue

The modulation levels adjust themselves to maintain a connection in response to noise levels.

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keasy
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Message 18 of 25
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Re: Upstream Modulation Issue - Potential Noise Issue

TY

 

I did actually know that, I was being sarccy.

 

😀

 

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID

13940000035.55120 KSym/sec32QAM12
24620000035.85120 KSym/sec32QAM11
35370000036.85120 KSym/sec64QAM10
46030000036.85120 KSym/sec64QAM9



3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1US_TYPE_STDMA0010
2US_TYPE_STDMA0000
3US_TYPE_STDMA0010
4US_TYPE_STDMA0010
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keasy
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Message 19 of 25
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Re: Upstream Modulation Issue - Potential Noise Issue

d612194e61743aa7cdc7284af838403ed2ff0949-07-03-2021

 

I know some folks will be happy with that but, I am not. I like an online game at the weekend and this is just bloody unplayable.

Engineers (as bang on and friendly as they have been) just don't know what to do outwith replacing connectors and fitting/uninstalling attenuators. 

 

Obviously not a contention issue. So what is it? there's something going wrong beyond the 'pit' and it's obviously intermittent.

This BQM is from a guy/friend a literal five-minute walk from my premises ...

 

b46980fb0e8645f0fc66df960a3762c626b3f540-07-03-2021

And within a one 1.5 mi radius...

 

d2b60084eb0829aa0e68262936b955c836dae5c6-07-03-2021

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JitteryPinger
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Message 20 of 25
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Re: Upstream Modulation Issue - Potential Noise Issue

Im failing to see the issue here, all the graphs you compared yours to are near identicle for latency, yours showa intermittent rises which look to be related to usage on your connection.

I will level with you now and tell you that your not going to get better latency that you have now with Virgin, you will have to switch to DSL based or full fibre service and ensure you manage the connection right to ensure priority of gaming traffic.

When I used to be **bleep** about latency in online gaming I had a basic ADSL service dedicated for gaming online and kept the fast VDSL service for everything else at the home.



If I've helped let me know 🙂

10 year's managing 9 Virgin Media accounts, and things never got any better, closed last 4 accounts since January 2021 :L

I give 'my' experience to help where possible.
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