Cable Forum - Virgin Media to Double Broadband Speed

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- - Virgin Media to Double Broadband Speed (https://www.cableforum.uk/board/showthread.php?t=33684528)

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

Re: Virgin Media to Double Broadband Speed

Quote:

Originally Posted by SnoopZ (Post 35404260)

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.

Mine's always at 45ish :erm:
Is that not right then SnoopZ?
:edit: should have said always at 45ish until I reboot.

Re: Virgin Media to Double Broadband Speed

Quote:

Originally Posted by Blackened (Post 35404320)

Mine's always at 45ish :erm:
Is that not right then SnoopZ?
:edit: should have said always at 45ish until I reboot.

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

Re: Virgin Media to Double Broadband Speed

Quote:

Originally Posted by SnoopZ (Post 35404326)

Optimal levels for downstream power are around -3 to +7 i believe, so your 45 is way out of spec.

The 45 will be the SNR, not power levels.

Re: Virgin Media to Double Broadband Speed

Quote:

Originally Posted by jimexbox (Post 35404330)

The 45 will be the SNR, not power levels.

My 47 was my power level on the 5th downstream channel until a reboot.

Re: Virgin Media to Double Broadband Speed

Quote:

Originally Posted by SnoopZ (Post 35404334)

My 47 was my power level on the 5th downstream channel until a reboot.

Wow. Did you have any browsing issues?

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.

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:
100Mb Engineer booked for tomorrow. :dozey:

Re: Virgin Media to Double Broadband Speed

Quote:

Originally Posted by SnoopZ (Post 35404260)

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.

Can you only check if additional channels have been added if you have a Hub?

Sorry for the noob question.

Re: Virgin Media to Double Broadband Speed

Quote:

Originally Posted by cookster (Post 35404367)

Can you only check if additional channels have been added if you have a Hub?

Sorry for the noob question.

Only the superhub can use 8 downstream channels. The other modems are 4 channels only so you can't tell.

Re: Virgin Media to Double Broadband Speed

The hub is not 4 channels only.

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

Re: Virgin Media to Double Broadband Speed

nice, I havent heard of an area having 6 channels yet so you might be the first :)

Re: Virgin Media to Double Broadband Speed

i am in the cosham area it that is of any help

Re: Virgin Media to Double Broadband Speed

Quote:

Originally Posted by jimexbox (Post 35404330)

The 45 will be the SNR, not power levels.

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.