50 mb installation today :(

[KenK2]

Hello

An engineer came today to upgrade my broadband from 20Mb to 50Mb.
At best I can get 15Mb when downloading and 1.5Mb uploading (according to various speed test). Also tried downloading a game demo from the virgin server and still got the same speed.

Can someone please clarify what are the correct donwstream and upsteram levels for this connection?

I have also pasted below the information I get from the modem. Can you tell me if they look OK? But also please tell me what the correct range should be so, if an engineer comes out I know what I should be checking before he leaves telling me all is fixed.

DOWNSTREAM

Frequency 299000000 307000000 315000000 323000000
Lock Status
(QAM Lock/FEC Sync/MPEG Lock) Y/Y/Y Y/Y/Y Y/Y/Y Y/Y/Y
Channel Id 77 78 79 80
Modulation 256QAM 256QAM 256QAM 256QAM
Symbol Rate
(Msym/sec) 6.952 6.952 6.952 6.952
Interleave Depth I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17
Power Level
(dBmV) -9.75 -9.88 -10.10 -9.53
RxMER
(dB) 35.97 35.97 35.97 36.61
Correctable
Codewords 52 37 30 119
Uncorrectable
Codewords 285 258 282 264

UPSTREAM

Channel Type 1.0 N/A N/A N/A
Channel ID 2 N/A N/A N/A
Frequency
(Hz) 45800000 N/A N/A N/A
Ranging Status Success N/A N/A N/A
Modulation 16QAM N/A N/A N/A
Symbol Rate
(KSym/sec) 2560 N/A N/A N/A
Mini-Slot Size 2 N/A N/A N/A
Power Level
(dBmV) 58.00 N/A N/A N/A
T1 Timeouts 0
T2 Timeouts 0 0 0 0
T3 Timeouts 2 0 0 0
T4 Timeouts 0 0 0 0

[Peter_]

DOWNSTREAM
Power Level
(dBmV) -9.75 -9.88 -10.10 -9.53 On the low side
RxMER( this is the SNR )
(dB) 35.97 35.97 35.97 36.61 Fine


UPSTREAM
Power Level
(dBmV) 58.00 To high


----------------------------------------------------------------------------
50Mb support line number.

0800 052 0431

Do not call if not 50Mb as you will be asked to hang up as the is no facility to transfer you to Broadband Support.

----------------------------------------------------------------------------

[KenK2]

Thanks Moldova

I have seen a sticky somewhere and I believe that the correct levels are the following. Can you please confirm if I am correct or I checked the wrong thread?

Downstream between -6 and +15 bBmV

SRN 33dB

Upstream bewlo +55 dBmV

[Peter_]

Thanks Moldova

I have seen a sticky somewhere and I believe that the correct levels are the following. Can you please confirm if I am correct or I checked the wrong thread?

Downstream between -6 and +15 bBmV

SRN 33dB

Upstream bewlo +55 dBmV
Yes thats why you are best calling up Tech Support on the number above.

[KenK2]

Yes thats why you are best calling up Tech Support on the number above.


Just talked to them. They confirmed that the upstream levels are too high but said nothing about the downstream levels, and the engineer is coming in a week time!!!!!
I can't believe that the one who came to install the modem today did not check the levels. What a non-sense as this could saved them the cost of re-sending an engineer

Also, when the engineer will come I will mentioned the downstream levels as well (even though tech support did not comment on them).

Thanks again Modlova.

[Peter_]

Just talked to them. They confirmed that the upstream levels are too high but said nothing about the downstream levels, and the engineer is coming in a week time!!!!!
I can't believe that the one who came to install the modem today did not check the levels. What a non-sense as this could saved them the cost of re-sending an engineer

Also, when the engineer will come I will mentioned the downstream levels as well (even though tech support did not comment on them).

Thanks again Modlova.
He will check them with a meter but its a good idea to mention it.

[Zhadnost]

It would be better to say that someone in Faults told you it was too high rather than bloke of t'internet :-)

[Agent47]

Thats what happens when you get a service which is not fit for purpose.

[Graham M]

Thats what happens when you get a service which is not fit for purpose.

Nothing wrong with the service, the signal levels are off though

[Peter_]

Thats what happens when you get a service which is not fit for purpose.
When did you become an expert on Virgin broadband and the power levels for the 50Mb tier.:D

[diablo]

HEY MOLDOVA
^^^^^^^^^

have a look at these will you...
my 50Mb has been up and down all night...
currently struggly at around 13Mbps....
does my head in man...BIGTIME....

Frequency 299000000307000000315000000N/A Lock Status
(QAM Lock/FEC Sync/MPEG Lock) Y/Y/YY/Y/YY/Y/YN/N/N Channel Id 333435N/A Modulation 256QAM256QAM256QAMN/A Symbol Rate
(Msym/sec) 6.9526.9526.952N/A Interleave Depth I=12
J=17I=12
J=17I=12
J=17N/A Power Level
(dBmV) 1.020.901.05N/A RxMER
(dB) 37.3637.9437.36N/A Correctable
Codewords 1659N/A Uncorrectable
Codewords 281884303N/A

[Peter_]

Downstream Power Level (dBmV) 1.02 0.90 1.05
RxMER (dB) ( SNR ) 37.36 37.94 37.36

Your downstream is fine how about posting the Upstream.

[DigitalShadow]

What are the "perfect" power levels for 50mbit?

[Peter_]

What are the "perfect" power levels for 50mbit?
The above Downstreams are spot on and the SNR is the same and Upstream ideally should be between 34 and 55

[xocemp]

Downstream as close to 0 as possible
Upstream 40

[Peter_]

Downstream as close to 0 as possible
Upstream 40
Pretty much ideal if around that.

[xocemp]

Thanks for the conformation, I feel educated now ;)

[Peter_]

Thanks for the conformation, I feel educated now ;)
It was good that he had double confirmation.;)

[xocemp]

No I was thanking you for confirming what I know to be right. Never mind.

[chriscling]

this is mine, is this bad?

Upstream transmit Power Level : 45.0 dBmV
Downstream Receive Power Level : 0.3 dBmV
Downstream SNR : 40.4 dB

[diablo]

Your downstream is fine how about posting the Upstream.

UPSTREAM AS REQUESTED.....

Channel Type 1.0 N/A N/A N/A
Channel ID 4 N/A N/A N/A
Frequency
(Hz) 37504000 N/A N/A N/A
Ranging Status Success N/A N/A N/A
Modulation 16QAM N/A N/A N/A
Symbol Rate
(KSym/sec) 2560 N/A N/A N/A
Mini-Slot Size 2 N/A N/A N/A
Power Level
(dBmV) 47.75 N/A N/A N/A
T1 Timeouts 0
T2 Timeouts 0 0 0 0
T3 Timeouts 1 0 0 0
T4 Timeouts 0 0 0 0

Your probably gonna tell me these are fine aswell....
which still leaves me wondering about large speed drops
for hours on end......!!!!!!!!!!!!! thanks for looking though :-)

[Peter_]

UPSTREAM AS REQUESTED.....


Power Level
(dBmV) 47.75
It is fine so you need to call Tech Support over your low speeds.

----------------------------------------------------------------------------
50Mb support line number.

0800 052 0431

Do not call if not 50Mb as you will be asked to hang up as the is no facility to transfer you to Broadband Support.

----------------------------------------------------------------------------

---------- Post added at 06:35 ---------- Previous post was at 06:34 ----------

this is mine, is this bad?

Upstream transmit Power Level : 45.0 dBmV
Downstream Receive Power Level : 0.3 dBmV
Downstream SNR : 40.4 dB
Yours is spot on as well if you are having any issues call the number

[Zhadnost]

Downstream as close to 0 as possible
Upstream 40


I thought on QAM 256 you want as close to 5dB as possible, as close to 0dB on QAM64.

With Upstream Transmit Power as low as possible.

[KenK2]

OK guys.

I have had an engineer here today but, unfortunately, someone else has to come back next Friday again.
He has managed to tweak my upstream levels and downstream levels but he said I required an upgraded cable going from R6 to R11 as my cable is already on the top platter and can tweak it any more than what he has done.
Anyhow he has managed to move my downstream from average of -9.8 to -5.8
and the upstream from 58 to 54.25. The SRN is on 37.9.
I would have thought that those levels now are fine but according to him I still need the cable upgrade.

[raybo62]

Hello

An engineer came today to upgrade my broadband from 20Mb to 50Mb.
At best I can get 15Mb when downloading and 1.5Mb uploading (according to various speed test). Also tried downloading a game demo from the virgin server and still got the same speed.

Can someone please clarify what are the correct donwstream and upsteram levels for this connection?

I have also pasted below the information I get from the modem. Can you tell me if they look OK? But also please tell me what the correct range should be so, if an engineer comes out I know what I should be checking before he leaves telling me all is fixed.

DOWNSTREAM

Frequency 299000000 307000000 315000000 323000000
Lock Status
(QAM Lock/FEC Sync/MPEG Lock) Y/Y/Y Y/Y/Y Y/Y/Y Y/Y/Y
Channel Id 77 78 79 80
Modulation 256QAM 256QAM 256QAM 256QAM
Symbol Rate
(Msym/sec) 6.952 6.952 6.952 6.952
Interleave Depth I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17
Power Level
(dBmV) -9.75 -9.88 -10.10 -9.53
RxMER
(dB) 35.97 35.97 35.97 36.61
Correctable
Codewords 52 37 30 119
Uncorrectable
Codewords 285 258 282 264

UPSTREAM

Channel Type 1.0 N/A N/A N/A
Channel ID 2 N/A N/A N/A
Frequency
(Hz) 45800000 N/A N/A N/A
Ranging Status Success N/A N/A N/A
Modulation 16QAM N/A N/A N/A
Symbol Rate
(KSym/sec) 2560 N/A N/A N/A
Mini-Slot Size 2 N/A N/A N/A
Power Level
(dBmV) 58.00 N/A N/A N/A
T1 Timeouts 0
T2 Timeouts 0 0 0 0
T3 Timeouts 2 0 0 0
T4 Timeouts 0 0 0 0

---------- Post added at 09:38 ---------- Previous post was at 09:33 ----------

Also what you have to think if ur running windows xp or lower that an optimizer has to be downloade onto your pc which helps the speeds and a download is run to see what the speeds are if any lower than 30 then there is a problem but vm do say anything above 20mb is acceptable ? But secondly there could be things within the pc that may stop them running at the correct speed .

[|Kippa|]

When I got my 50mbit installed today, initially the upload was 1.5mbit but the download was only 20mbit. I reset my computer and rebooted then did a test again and it downloaded fine at 50mbit. If you have not reset your computer since you got the 50mbit installed then reboot your PC.

[Quam256]

Hello

An engineer came today to upgrade my broadband from 20Mb to 50Mb.
At best I can get 15Mb when downloading and 1.5Mb uploading (according to various speed test). Also tried downloading a game demo from the virgin server and still got the same speed.

Can someone please clarify what are the correct donwstream and upsteram levels for this connection?

I have also pasted below the information I get from the modem. Can you tell me if they look OK? But also please tell me what the correct range should be so, if an engineer comes out I know what I should be checking before he leaves telling me all is fixed.

DOWNSTREAM

Frequency 299000000 307000000 315000000 323000000
Lock Status
(QAM Lock/FEC Sync/MPEG Lock) Y/Y/Y Y/Y/Y Y/Y/Y Y/Y/Y
Channel Id 77 78 79 80
Modulation 256QAM 256QAM 256QAM 256QAM
Symbol Rate
(Msym/sec) 6.952 6.952 6.952 6.952
Interleave Depth I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17
Power Level
(dBmV) -9.75 -9.88 -10.10 -9.53
RxMER
(dB) 35.97 35.97 35.97 36.61
Correctable
Codewords 52 37 30 119
Uncorrectable
Codewords 285 258 282 264

UPSTREAM

Channel Type 1.0 N/A N/A N/A
Channel ID 2 N/A N/A N/A
Frequency
(Hz) 45800000 N/A N/A N/A
Ranging Status Success N/A N/A N/A
Modulation 16QAM N/A N/A N/A
Symbol Rate
(KSym/sec) 2560 N/A N/A N/A
Mini-Slot Size 2 N/A N/A N/A
Power Level
(dBmV) 58.00 N/A N/A N/A
T1 Timeouts 0
T2 Timeouts 0 0 0 0
T3 Timeouts 2 0 0 0
T4 Timeouts 0 0 0 0

---------- Post added at 08:51 ---------- Previous post was at 08:49 ----------

[raybo62]

What the problem is your downstream frequencies the 50mb qams should be as near to 0 as can be so the engineer should go down to the cabinet and move your cable onto a higher tap to compensate hopefully your upstream will then go down below 58