Virgin Media to Double Broadband Speed
23-03-2012, 11:11
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#1501
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Inactive
Join Date: Dec 2007
Posts: 18,398
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Re: Virgin Media to Double Broadband Speed
I got all excited this morning after seeing a 10 minute drop-out on the TBB monitor just before 8am.. Thought it might be the upgrade..but alas it wasn't
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23-03-2012, 11:13
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#1502
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Inactive
Join Date: Mar 2009
Posts: 665
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Re: Virgin Media to Double Broadband Speed
Quote:
Originally Posted by SnoopZ
I did have to reboot the shub though as the 5th channel was showing a power level of 47 dBmV before it displayed the normal value.
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Mine's always at 45ish ![Erm](images/smilies/erm.gif)
Is that not right then SnoopZ?
:edit: should have said always at 45ish until I reboot.
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23-03-2012, 11:21
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#1503
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CF Resident Dog
Join Date: Mar 2005
Posts: 14,385
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Re: Virgin Media to Double Broadband Speed
Quote:
Originally Posted by Blackened
Mine's always at 45ish ![Erm](images/smilies/erm.gif)
Is that not right then SnoopZ?
:edit: should have said always at 45ish until I reboot.
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Optimal levels for downstream power are around -3 to +7 i believe, so your 45 is way out of spec.
Quote:
Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 315000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Configuration File OK
Security Enabled BPI+
Downstream Channels
Lock Status Modulation Channel ID Max Raw Bit Rate Frequency Power SNR Docsis/EuroDocsis locked
Locked QAM256 54 55616000 Kbits/sec 315000000 Hz -1.2 dBmV 36.1 dB Hybrid
Locked QAM256 49 55616000 Kbits/sec 291000000 Hz -0.5 dBmV 36.1 dB Hybrid
Locked QAM256 50 55616000 Kbits/sec 299000000 Hz -0.6 dBmV 36.2 dB Hybrid
Locked QAM256 53 55616000 Kbits/sec 307000000 Hz -0.6 dBmV 36.4 dB Hybrid
Locked QAM256 55 55616000 Kbits/sec 323000000 Hz -1.4 dBmV 36.7 dB Hybrid
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Upstream Channels
Lock Status Modulation Channel ID Max Raw Bit Rate Frequency Power
Locked ATDMA 2 20480 Kbits/sec 35800000 Hz 44.5 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
Primary Downstream Service Flow
Downstream(0)
SFID 5882
Max Traffic Rate 33330000 bps
Max Traffic Burst 3044 bytes
Mix Traffic Rate 0 bps
Primary Upstream Service Flow
Upstream(0)
SFID 5881
Max Traffic Rate 3333000 bps
Max Traffic Burst 8160 bytes
Mix Traffic Rate 0 bps
Max Concatenated Burst 8160 bytes
Scheduling Type Best Effort
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23-03-2012, 11:26
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#1504
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Inactive
Join Date: Nov 2006
Posts: 64
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Re: Virgin Media to Double Broadband Speed
Quote:
Originally Posted by SnoopZ
Optimal levels for downstream power are around -3 to +7 i believe, so your 45 is way out of spec.
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The 45 will be the SNR, not power levels.
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23-03-2012, 11:32
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#1505
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CF Resident Dog
Join Date: Mar 2005
Posts: 14,385
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Re: Virgin Media to Double Broadband Speed
Quote:
Originally Posted by jimexbox
The 45 will be the SNR, not power levels.
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My 47 was my power level on the 5th downstream channel until a reboot.
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23-03-2012, 11:33
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#1506
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Inactive
Join Date: Nov 2006
Posts: 64
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Re: Virgin Media to Double Broadband Speed
Quote:
Originally Posted by SnoopZ
My 47 was my power level on the 5th downstream channel until a reboot.
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Wow. Did you have any browsing issues?
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23-03-2012, 11:41
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#1507
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CF Resident Dog
Join Date: Mar 2005
Posts: 14,385
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Re: Virgin Media to Double Broadband Speed
If you see my post 1505 you can see my power levels are back to normal now.
This 47 i am talking about was literally right after the 5th channel was added, and a reboot cured it, the internet worked normally though when it was 47.
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23-03-2012, 11:59
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#1508
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Inactive
Join Date: Oct 2004
Location: Virgin Islands
Age: 79
Services: VM Phone
152 Meg.
Posts: 1,552
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Re: Virgin Media to Double Broadband Speed
Prior to yesterday I had 4 DS channels. Now I have 4, 6 or 7 after reboot, upload speed has dropped to 3Mb from 10 and the data transfer LED is flashing all the time even when no data is flowing. ![Erm](images/smilies/erm.gif)
100Mb Engineer booked for tomorrow.
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23-03-2012, 12:28
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#1509
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Inactive
Join Date: Feb 2005
Posts: 170
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Re: Virgin Media to Double Broadband Speed
Quote:
Originally Posted by SnoopZ
Cambridge CB24 has had another downstream channel added this morning making it 5 but still only 1 upstream, i was hoping for 8 channels due to high congestion at peak times.
I did have to reboot the shub though as the 5th channel was showing a power level of 47 dBmV before it displayed the normal value.
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Can you only check if additional channels have been added if you have a Hub?
Sorry for the noob question.
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23-03-2012, 13:12
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#1510
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a giant headend
Join Date: Jan 2011
Location: Liverpool
Posts: 1,166
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Re: Virgin Media to Double Broadband Speed
Quote:
Originally Posted by cookster
Can you only check if additional channels have been added if you have a Hub?
Sorry for the noob question.
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Only the superhub can use 8 downstream channels. The other modems are 4 channels only so you can't tell.
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23-03-2012, 13:38
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#1511
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cf.mega poster
Join Date: Aug 2004
Posts: 11,207
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Re: Virgin Media to Double Broadband Speed
The hub is not 4 channels only.
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23-03-2012, 17:29
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#1512
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cf.addict
Join Date: Apr 2011
Location: Havant, UK
Age: 57
Services: 120mg Broadband (Virgin)
telephone (Virgin media)
2 x Tivo
Posts: 131
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Re: Virgin Media to Double Broadband Speed
Mine download channels have changed from 4 to 6 with the same 1 channel upload. also the power has dropped from +1.2'ish to -1.6'ish
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23-03-2012, 17:32
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#1513
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Ran Away
Join Date: Nov 2008
Location: Lincoln
Services: phone + 1gbit BB + SkyQ
Posts: 11,021
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Re: Virgin Media to Double Broadband Speed
nice, I havent heard of an area having 6 channels yet so you might be the first
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23-03-2012, 17:34
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#1514
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cf.addict
Join Date: Apr 2011
Location: Havant, UK
Age: 57
Services: 120mg Broadband (Virgin)
telephone (Virgin media)
2 x Tivo
Posts: 131
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Re: Virgin Media to Double Broadband Speed
i am in the cosham area it that is of any help
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23-03-2012, 17:37
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#1515
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Inactive
Join Date: Mar 2009
Posts: 665
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Re: Virgin Media to Double Broadband Speed
Quote:
Originally Posted by jimexbox
The 45 will be the SNR, not power levels.
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No, it was power on the 5th channel. I notice it quite a lot as it sticks out on the table like a sore thumb.
All seems to be OK at the moment though, but there were never any browsing issues, or otherwise.
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